What explains the contents of political belief systems? A widespread view is that they derive from abstract values, like equality, tolerance, and authority. Here, we challenge this view, arguing instead that belief systems derive from political alliance structures that vary across nations and time periods. When partisans mobilize support for their political allies, they generate patchwork narratives that appeal to ad-hoc, and often incompatible, moral principles. In the first part of the paper, we explain how people choose their allies, and how they support their allies using propagandistic tactics. In the second part, we show how these choices and tactics give rise to political alliance structures, with their strange bedfellows, and the idiosyncratic contents of belief systems. If Alliance Theory is correct, then we need a radically different approach to political psychology—one in which belief systems arise not from deep-seated moral values, but from ever-shifting alliances and rivalries.
Political belief systems in the United States can be confusing. According to public opinion polls, conservatives believe that we ought to have more respect for authority (but business owners should disobey regulations they believe are unfair), that people should be allowed to express their political opinions freely in the workplace (but athletes should not be allowed to kneel during the national anthem), that nobody deserves a free handout from the government (but the government should do more to help small, working class towns in America’s heartland), and that we ought to be more suspicious of foreigners (but we should trust Vladimir Putin when he said that he did not interfere in the 2016 election; Pulse of the Nation, 2018a, 2017a, 2018b, 2017b). On the other hand, liberals believe that it’s unfair for CEOs to make millions of dollars a year (but it’s fair for Hollywood movie stars to make millions of dollars a year), that we should stand in solidarity with labor unions (but not police unions), that we should not blame all Muslims for Islamist terrorist attacks (but we should blame all Trump voters for the 2017 killing in Charlottesville), and that it’s wrong to endorse negative stereotypes about a group of people based on their place of birth (but people from the south are racist; Pulse of the Nation, 2018c, 2017c, 2018d; Gallup, 2020).
What is the moral thread that ties all these beliefs together? We suggest a novel answer: there is none. Each moral standard in the above paragraph, together with its apparent violation, serves a strategic function, namely mobilizing support for a specific political ally, or mobilizing opposition to a specific political rival. The more heterogeneous one’s allies and rivals, the more heterogeneous one’s political beliefs will be. Whenever such a wide variety of groups and individuals form alliances, such inconsistencies are bound to arise (for additional inconsistencies, see table 1). These inconsistencies are some of the key predictions of our approach, which we call Alliance Theory.
Alliance Theory leverages decades of research in political science showing that, with the exception of political elites, most Americans lack consistent ideological beliefs (Campbell, Converse, Miller, & Stokes, 1980; Achen & Bartels, 2016; Kinder & Kalmoe, 2017). However, we depart from these approaches by stressing that political elites are in many ways just as inconsistent as the masses; they are merely better attuned to (or more loyal to) the historically contingent alliances that arose in their society. These alliances are no more conducive to intellectual consistency than any other set of alliances, historical or contemporary (and there are many; Gunther & Diamond, 2003; Deegan-Krause, 2007; Karol, 2009). It is therefore misleading to characterize elite opinion as more “coherent,” “sophisticated,” “organized,” “deep,” or “thoughtful” than mass opinion (Kinder & Kalmoe, 2019, pp. 2-17). After all, the combination of libertarianism with Christian fundamentalism did not emerge from philosophical analysis. The only reason these philosophies go together in the United States is because of the strategic alliance between pro-life evangelicals and wealthy Republicans in the 1970s—an alliance that is uncommon in other countries (Karol, 2009, chapter 3; Malka, Lelkes, & Soto, 2017; Chen & Lind, 2007; see also Lewis & Lewis, 2022).
Indeed, we argue that political belief systems are not so much “philosophies” as collections of ad hoc justifications, rationalizations, moralizations, embellishments, and rhetorical tactics designed to advance the interests of complex political alliances in competition with their rivals. Moral principles are not so principled. Core values are not so core. Ideological worldviews are not designed to literally view the world but to serve strategic functions like signaling allegiance or mobilizing support (Williams, 2021)…
Rather than using the terms “ingroup” and “outgroup,” we refer to “allies” and “rivals.” We use these terms to emphasize that forming an alliance with a group does not require being in that group. For example, one can feel allegiance to African Americans or police officers without being an African American or a police officer. Likewise, one can feel resentment toward white people or “poor people,” despite being a white person or a relatively poor person (Kuziemko, Buell, Reich, & Norton, 2014). These phenomena are easier to understand in terms of alliances and rivalries—which can occur both within and between groups—than in terms of identities…
People do not simply cheer for ideologies or parties as monolithic entities: they advocate for, and rally opposition to, a variety of distinct ethnic, religious, economic, occupational, and cultural groups (in addition to specific individuals) situated in unique conflicts. It is these conflicts that explain political belief systems, defining—and continually redefining—what it means to be a liberal or conservative, Republican or Democrat…
Alliance Theory makes two assumptions: 1) humans possess cognitive mechanisms for forming and detecting alliances, and 2) humans use propagandistic tactics to support their allies and oppose their rivals in conflicts…
Alliances are a crucial feature of social life among a variety of social species including chimpanzees, baboons, macaques, dolphins, and hyenas (Harcourt & De Waal, 1992). Why has evolution selected for alliances in so many different species? The answer is that there is strength in numbers: two individuals are stronger than one, three are stronger than two, and so forth, leaving individuals without allies “nakedly at the mercy of everyone else” (Tooby, 2017). Alliances can occur between high-ranking individuals to maintain their rank (called conservative alliances), between low-ranking individuals to advance their rank (called revolutionary alliances), and between high and low-ranking individuals to achieve both of these ends (called bridging alliances; Chapais, 1995). These decisions give rise to an alliance structure, defined as the network of supportive or antagonistic relationships between members of a society (DeScioli & Kimbrough, 2019). Given the adaptive advantages of forming alliances, the crucial decision is not whether to form an alliance, but whom to choose as one’s allies (Tooby, 2017; DeScioli & Kurzban, 2009; Chapais, 1995).
All else equal, more similar individuals make better allies. Sharing the same beliefs, preferences, and expectations allows for more efficient and fluid coordination (Efferson, Lalive, & Fehr, 2008; McElreath, Boyd, & Richerson, 2003). People use “tags,” “markers,” or “identities” to assort with likeminded individuals (McElreath et al., 2003; Smaldino, 2019), and they alter their appearance to signal commitment to a particular group over alternative groups (Sosis, Kress, & Boster, 2007; Fessler & Quintelier, 2013; Kuran, 1998). Observable markers of similarity are also useful as coordination devices or “focal points,” creating common knowledge of existing alliances (Schelling, 1980, chapter 3). As a result, when people are split apart based on arbitrary labels, it creates a self-fulfilling expectation that possessors of each label will favor each other as allies, known as a “minimal groups” effect (Balliet, Wu, & De Dreu, 2014).
Transitivity
Individuals who exhibit transitivity—i.e. who share the same allies and rivals—make better allies as well. Transitivity mitigates two risks: 1) infighting, where one’s allies enter conflicts against one another, and 2) betrayal, where one’s allies side with one’s rivals (Nakamura, Tita, & Krackhardt, 2011; Hiler, 2017; Pietraszewski, 2016). Individuals therefore benefit from favoring transitive allies, and by adopting their allies’ social preferences—as in the saying “the enemy of my enemy is my friend” or “any friend of yours is a friend of mine” (Tooby & Cosmides, 2010, pp. 208-209; Pietraszewksi, 2016). Mathematical models have shown that transitivity gives rise to clusters of individuals with shared loyalty toward one another and shared rivalry toward other clusters—a natural definition of what “groups” are (Hiler, 2017; Pietraszewski, 2016; Gray et al., 2014). Alliances can also occur between groups, called “super-alliances,” and can vary in terms of their transitivity with other groups (Connor, Heithaus, & Barre, 2001; MacFarlan, Walker, Flinn, & Chagnon, 2014). Research indicates that transitivity plays an important role in both individual and intergroup alliances, including in adolescent friendships, gang rivalries, religious conflicts, and international relations…
Interdependence
Individuals who are interdependent—i.e. who reliably provide benefits to one another—make better allies as well. For example, individuals might reliably share knowledge (Henrich & Gil-White, 2001), offer protection from aggressors (Snyder et al., 2001), or provide help in times of need (Tooby & Cosmides, 1996). Consistent with evolutionary theories of interdependence (Aktipis et al., 2018), people feel allegiance to people who are instrumental to their goals (Orehek & Forest, 2016), and they feel enmity toward those who threaten their goals (Cottrell & Neuberg, 2005). People also support political parties that advance their personal and group interests (Weeden & Kurzban, 2014), creating interdependence with co-partisans who share the same interests…
Well-off people also use propaganda to defend their interests. They assume their social and material advantages derive from internal dispositions (talent, hard work) rather than external causes (luck, circumstances). Worse-off people exhibit the opposite bias: they assume their disadvantages derive from external causes (misfortune, mistreatment) rather than internal dispositions (incompetence, low effort). This general pattern of results, observed within the same individuals, is known as the “self-serving attributional bias” (Bradley, 1978). People also apply this attributional bias to their allies, attributing their allies’ advantages to internal causes and their disadvantages to external causes…
Humans, like other social animals, possess an alliance psychology. This psychology includes mechanisms for choosing allies (based on similarity, transitivity, and interdependence) and supporting allies in conflicts (by using victim, perpetrator, and attributional biases). We expect these mechanisms to be symmetrical across political lines—indeed across all humans—as they are part of our species’ basic cognitive toolkit…
The military is not always “conservative”: many radical left-wing movements in Latin America—e.g., Chavismo in Venezuela, Peronism in Argentina—were led by former military leaders and championed a kind of militaristic socialism (Corrales, 2014; Marchesi, 2017). College professors are not always “liberal”: during the early 20th century, many progressive scholars supported eugenics and opposed the migration of “inferior” races into the country (Leonard, 2017). Christian fundamentalists are not always “conservative”: in many European and Latin American countries with state religions, religious traditionalism (e.g., opposition to abortion) is associated with economic leftism (Chen & Lind, 2007; Huber & Stanig, 2011; Malka et al., 2017). Feminists and ethnic minorities are not always allies: during the women’s suffrage movement, many feminists excluded African Americans and did not consider their voting rights analogous to theirs (Staples, 2018). Environmentalists are not always “liberal”: during the 1980s and 1990s, Green Parties in Central and Eastern Europe arose in opposition to Soviet industrial policy, forming alliances with anticommunists and right-wing nationalists (Auers, 2012; Kwiotkowska, 2019). The dominant ethnic group is not always “conservative”: many political parties have fused economic leftism with ethnic nationalism, including Australia’s Labor Party (prior to the 1970s; James, Markey, & Markey, 2006, pp. 31-12), Slovakia’s Direction – Social Democracy (Mihálik & Jankoľa, 2016, p. 10), and Italy’s Five Star Movement (Emanuele, Maggini, & Paparo, 2020, p. 9). Given the diversity and dynamism of alliance structures across time and space, it is misleading to think of any particular alliance structure (including our own) as the “consistent” one…
Whenever countries are culturally and economically similar, they tend to converge on similar alliance structures. For example, nations with similar levels of exposure to globalization have exhibited similar political backlashes among the “losers of globalization” (Teney et al., 2014). Nations with similar declines in religiosity have exhibited similar conflicts between secularists and religionists over changing sexual mores (Weeden & Kurzban, 2013). If the losers of globalization tend to be more religious, then anti-globalists and anti-secularists will tend to fall within the same political coalitions across nations. Ethnic minorities, insofar as they are less wealthy and more in need of social safety nets, will tend to favor economically left-wing parties (Teney, Jacobs, Rea, & Delwit, 2010, pp. 278-279), assuming they trust political elites to support them (Holland, 2018). Lower class members of the ethnic majority, however, are more likely to feel resentful of ethnic minorities (and their political allies), viewing them as competitors for status and resources. An alliance of lower class, religious, and anti-globalist members of the ethnic majority may therefore be more likely than alternative alliances…
But the latter half of the 20th century brought four major political realignments. First, the Democrats passed the Civil Rights Act of 1964, drawing racially conservative southerners into the Republican Party and accelerating the movement of African Americans into the Democratic Party (Abramowitz, 2018, Chapters 2-4; Karol, 2009, chapter 4). Second, the Republican Party took ownership of the pro-life, evangelical movement, causing Christian traditionalists to move into the Republican Party and secular feminists to move into the Democratic Party (Abramowitz, 2018, Chapter 3; Karol, 2009, chapter 3). Third, influxes of immigrants from Latin America—coupled with urbanization and the decline of manufacturing work—gave rise to a rural, white underclass who attributed their declining status to immigration and globalization (Abrajano & Hajnal, 2015; Teney et al., 2014). At the same time, expanding college enrollment produced a new upper class of highly educated “knowledge workers” (e.g., journalists, academics; Brint, 1984), while large corporations commanded an increasingly greater share of wealth and political power (Piketty, 2020). These trends resulted in competition and resentment between intellectual elites (e.g., highly educated professionals) and business elites (e.g., wealthy corporate executives; Brint, 1984; Turchin, 2012; pp. 3-5; Weeden & Kurzban, 2014, pp. 146-150; Bonica, 2014, figure 7; Bartels, 2016, tables 2 and 9; Magni-Berton & Rios, 2018; Piketty, 2020, chapter 15). In other words, the lower class split apart based on ethnic rivalries, while the upper class split apart based on status rivalries, thereby weakening the historical link between partisanship and class.
We propose that other groups—e.g., Muslims, police officers, the military—got ensnared in this alliance structure through perceptions of similarity and transitivity. Conflicts between African Americans and law enforcement may have caused the two parties to split apart in their allegiance to police officers. Wars in Iraq and Afghanistan may have had a similar effect: that is, the rivals of Muslim extremists (i.e. Christian extremists) may have taken the side of the American military, while the rivals of Christian extremists (i.e. secular liberals) may have eventually, with the exception of the so-called “new atheists,” taken the side of Muslims (i.e. the enemy of their enemy is their friend). Partisanship, and cues from party leaders in support of particular wars, may have also played a role in shaping military attitudes (Zaller, 1992, chapter 6; Karol, 2009, chapter 5; Berinsky, 2007). Regardless of how the American alliance structure changed throughout the decades, we can see that it did change, with political elites rationalizing the changes every step of the way (Lewis & Lewis, 2022)…
Republicans appear to feel greater allegiance toward white people than they do toward African Americans (see figures 1 and 2). Thus, Republicans are predicted to display perpetrator biases toward white people, which might include downplaying white people’s transgressions against African Americans, including those that have occurred throughout American history. Indeed, polling data reveal that Republicans, together with white people in general, are far less likely to believe that that discrimination against African Americans is currently a problem, that the legacy of slavery contributes to racial disparities in wealth, and that African Americans are entitled to reparations (Moore, 2014). An alternative interpretation of these results is that Republicans are more likely to downplay intergroup oppression in general. However, the same poll revealed bipartisan support of reparations for Holocaust survivors in Germany (Moore, 2014), suggesting that perpetrator biases are specific to one’s local political allies.
Conservatives appear to feel allegiance toward members of the American military (see figures 1 and 2); thus, Alliance Theory predicts that conservatives will be inclined to rationalize military transgressions. Indeed, research indicates that conservatives are less likely to hold the military responsible for unintended civilian casualties, but they are not less likely to hold Iraqis responsible for unintended civilian casualties (Uhlmann, Pizarro, Tannenbaum, & Ditto, 2009; Ditto, Pizarro, & Tannenbaum, 2009; Tannenbaum, Pizarro, & Ditto, 2007). Other data indicate that conservatives are more likely to condone torture perpetrated by the American military; however, they are not more likely to condone torture perpetrated by Iraqis (Norris, Larsen, & Stastny, 2010; see also Crawford, 2012)…
When liberals evaluate harms inflicted upon their political rivals (e.g., pro-life supporters, Christian fundamentalists), they are more likely to agree that defacing these groups’ property is “justified,” and that any harassment they suffer is “deserved” (Wetherell, Brandt, & Reyna, 2013). Many strongly identified Democrats justify “mistreatment” of their political opponents, “breaking a few rules” to oppose them, and even using violence as a political tactic (Kalmoe & Mason, 2019). In hypothetical “trolley dilemmas,” liberals are more likely to offer ad hoc moral justifications for killing a white person to save a group of African Americans, but not for killing an African American to save a group of white people (Uhlmann et al., 2009). Liberals (and Democrats) appear to judge a variety of corrupt or dishonest behaviors as less morally wrong when they are committed by Democratic politicians, compared to similar transgressions committed by Republican politicians or corporate CEOs (Coleman, 2013; Solomon, Hackathorn, & Crittendon, 2019; Eriksson, Simpson, & Strimling, 2019; Jasinenko, Christandl, & Meynhardt, 2020). Perpetrator biases are also consistent with examples of liberal intellectuals downplaying, overlooking, or justifying atrocities committed by socialist and communist regimes…
Liberals appear to feel allegiance toward a variety of disadvantaged groups (e.g., African Americans, women, gay people, Hispanics; see figures 1 and 2). Thus, Alliance Theory predicts that liberals will apply victim biases to these groups. This idea is consistent with the gradual “concept creep” that has occurred for the definition of “prejudice,” which has expanded to encompass increasingly subtle, indirect, and unintentional behaviors, and has coincided with increasing political polarization…
Victim biases may occur among conservatives as well, albeit toward different groups. Since conservatives appear to feel greater allegiance to men, working class white people, Christians, and police officers (see figures 1 and 2), Alliance Theory predicts that conservatives will apply victim biases to these groups, perhaps even engaging in competitive victimhood with liberals. Consistent with this prediction, conservatives are far more likely to believe that discrimination against Christians is a serious societal problem (Jones, Cox, Dionne, Galston, Lienesch, 2016, pp. 16-17), that sexism against men is more prevalent than sexism against women (Bosson, Vandello, Michniewicz, & Lenes, 2012), that most black people are racist against white people (Rasmussen Reports, 2013), and that politicians’ criticism of police officers threatens their safety (Rasmussen Reports, 2015a). Other polling data indicate that 65% of Republicans agree that “people are too easily offended,” despite also agreeing that Black Lives Matter is offensive (Pulse of the Nation, 2017d)…
Conservatives are more likely to attribute wealth and poverty to internal dispositions (i.e. hard work, lack of effort) than external factors (i.e. circumstances beyond one’s control; Pew Research Center, 2014; Weiner, Osborne, & Rudolph, 2011; Chambers, Swan, & Heesacker, 2015). Echoing these findings, poor people are more likely to attribute their financial problems to external circumstances, while wealthy people are more likely to attribute their financial success to internal dispositions (Pew Research Center, 2014), suggestive of a self-serving attributional bias.
One alternative interpretation of these results is that liberals are generally less likely to make internal attributions to a target. However, a large body of research refutes this hypothesis, showing instead that liberals strategically alter their attributions depending on their allegiance to the target. For example, liberals are more likely than conservatives to make internal attributions to a group of marines who inadvertently killed Iraqi civilians in response to an attack, as well as a police officer who shot an escaped cougar from the zoo (Morgan, Mullen, & Skitka, 2010). Similarly, Democrats are more likely to make internal attributions to a Republican politician (but not a Democratic politician) who committed bribery, as well as a Democratic politician (but not a Republican politician) who made a large donation to charity (Coleman, 2013; see also Malhotra & Kuo, 2008; Sirin & Villalobos, 2011). Democrats are also more likely to blame their Republican president, but not their Democratic governor, for unemployment increases in their state (Brown, 2010). Many liberal Democrats even report that climate change deniers “get what they deserve” when natural disasters strike their homes, suggesting an internal attribution for their misfortune (Webster & Motta, 2019). Crucially, when individuals make attributions about the behavior of politically neutral individuals—i.e. those not widely associated with either political party—researchers find no ideological differences in their attributions (Morgan et al., 2010).
There is also suggestive evidence that external attributions are made by working class white people, who have recently become an important voting bloc within the Republican Party (Pew Research Center, 2016a). That is, rather than attributing their low status to internal causes (e.g., lack of effort or skill), they attribute it to external causes (e.g., immigration, globalization, reverse discrimination). Consistent with this idea, working class white people are more likely to believe that international trade hurts their family’s finances (Pew Research Center, 2016b), that immigrants take jobs away from Americans (Rasmussen Reports, 2015b; Jones et al., 2016), and that white people are disadvantaged by reverse discrimination (Jones et al., 2016, pp. 15-17). These beliefs are also more likely to be endorsed by Republicans more broadly…
Conservatives appear to believe that poor people should take personal responsibility for their financial problems (but that working class white people should blame immigration, globalization, and affirmative action), that the infliction of torture and collateral damage is morally permissible (but that Iraqi’s infliction of torture and collateral damage is reprehensible), that we ought to respect the authority of the military (but not the FBI or the WHO), and that people should stop being so easily offended (except Christians, white people, men, and police officers). Liberals appear to believe that poor people are not personally responsible for their financial problems (but that climate change deniers are personally responsible for natural disasters that strike their home), that it is unacceptable to kill Iraqi civilians to save American lives (but that it is acceptable to kill a white person to save African American lives), that Democratic politicians’ corruption is overblown (but that corporate CEOs corruption is reprehensible), and that we ought to protect minority college students (but not police officers in dangerous communities) from feeling unsafe.
What can explain this bewildering variety of beliefs? Alliance Theory suggests a parsimonious answer: liberals and conservatives have different allies and rivals. When they use propagandistic biases to support their allies and oppose their rivals, they generate conflicting narratives that form the contents of political belief systems. In the following section, we compare Alliance Theory to alternative approaches, focusing on where they make diverging predictions. In particular, we compare Alliance Theory to approaches that 1) entail an asymmetry between liberals and conservatives in their moral values, and 2) use this asymmetry to directly explain the contents of political belief systems…
Liberals exhibit equal levels of dislike, discrimination, and support for violence against conservatives as the other way around (Chambers et al., 2013; Wetherell et al., 2013; Brandt, 2017; Kalmoe & Mason, 2019; though see Ganzach & Schul, 2021). Likewise, Democrats are just as negatively biased against Republicans (both implicitly and explicitly) as the other way around, and both groups are equally likely to discriminate against one another in hypothetical job applications…
The tendency to view one’s rivals as aggressive, hateful, and unreasonable (i.e. intolerant), and one’s allies as peaceful, friendly, and reasonable (i.e. tolerant), is a common feature of social conflicts across cultures…
Republicans, compared to Democrats, have more negative attitudes toward Hispanics but more positive attitudes toward Asian Americans… Other research indicates that negative attitudes toward immigrants crucially depends on the characteristics of the immigrants in question—not on foreignness per se. When immigrants are described as Christian, European, Asian, law-abiding, or highly skilled, a majority of Republicans support immigration, with little or no partisan differences. It is only when immigrants are described as Muslim or Central American that clear partisan differences emerge, with Muslim immigrants eliciting the largest partisan divide…
Liberals and conservatives are equally hostile to their political rivals, and they are equally hostile to the allies of their political rivals. Conservatives are not generally threatened by foreigners, but in fact hold favorable attitudes toward a wide variety of foreigners, including Asian immigrants, European immigrants, Christian immigrants, Russia, Israel, and even Vladimir Putin. Conservatives do not appear to be particularly nationalistic, patriotic, ethnocentric, or prejudiced based on immutable traits. They simply have different allies and rivals than their liberal counterparts…
Research in comparative politics indicates that, across nations, preference for authoritarian vs. democratic governance does not consistently align with either left-wing or right-wing identification…
Both left-wing and right-wing authoritarians want their allies at the top, and their rivals at the bottom, of the social hierarchy. Neither are opposed to hierarchy itself.
When people voice their support for equality, they may not be promoting an abstract ideal so much as attempting to advance the interests of their political allies in specific conflicts. Egalitarian rhetoric is most often employed in political discourse to mobilize support for African Americans, feminists, gay people, liberals, and Democrats. Use of this rhetoric may therefore reflect allegiance to that particular set of groups, as opposed to an impartial moral preference that cuts across group identities…
Liberals mainly oppose discrimination against their allies and trust their allies, whereas conservatives mainly oppose discrimination against their allies and trust their allies… People engage in competitive victimhood to mobilize support their allies (Noor et al., 2012), while denying or downplaying mistreatment of their rivals…
Group allegiances determine apparent moral values more than the other way around (Goren, 2005), ethical philosophies are often confabulated to justify support for one’s allies (Uhlmann et al., 2009), and moral “principles” change flexibly depending on whether they benefit one’s allies or rivals…
Partisans on both sides of the political spectrum claim to be motivated by moral virtues like altruism, impartiality, honesty, and love, while claiming that their political opponents are motivated by selfishness, intolerance, dishonesty, and hatred…
From the perspective of Alliance Theory, politics and morality are different domains, with the former often masquerading as the latter for strategic purposes. We do not deny that humans are fundamentally moral beings (Hamlin, 2013); rather, we claim that the widespread conflation of politics with morality hinders our understanding of both. Politics is about conflict and loyalty, whereas morality is about cooperation and impartiality (Baumard et al., 2013; DeScioli & Kurzban, 2013). Attending to these distinctions yields novel predictions, while ignoring them sows needless confusion. For instance, we predict that loyal partisans, compared to weaker or more moderate partisans, will be more willing to condone actions committed by their political allies that they would otherwise view as immoral (e.g., Solomon et al., 2019). Loyal partisans might also be relatively more likely to exhibit moral hypocrisy—that is, they may be more likely to flout their apparent moral principles when it serves the interests of their political allies (see table 1). However, these predictions make little sense if politics and morality are the same thing. Why would the most morally motivated individuals (i.e. loyal partisans) be the least morally principled? The predictions only make sense if we assume that politics is different from, and sometimes at odds with, morality.
The distinction between politics and morality also suggests that abstract, moral disagreement between partisans may be overstated. Rather than disagreeing about the general moral importance of tolerance, authority, or equality, partisans may merely disagree about who should be tolerated, whose authority is legitimate, and whose advantages are unfair. Rather than disagreeing about justice in the abstract, partisans may merely disagree about who deserves status (and how much), who deserves condemnation (and how much), and who deserves sympathy (and how much). Indeed, much of political discourse plays out against a backdrop of tacit moral agreement. Disputants compete to frame their opponents as immoral—e.g., unfair, selfish, disrespectful—while relying on shared assumptions of what counts as moral.
Many of us are familiar with the “politics” of everyday life—office politics, academic politics, etc. Yet the politics of everyday life may be no different from the politics of a democratic citizenry. Political alliances may be analogous to friendships; political parties may be analogous to cliques; and ideological belief systems may be analogous to the ‘two sides of a story’ the emerge from interpersonal disputes. If you do not trust your friends’ side of the story, they may not consider you a true friend; likewise, if you do not trust your fellow partisans’ side of the story, they may not consider you a true ally. When seen in this light, motivated reasoning is not so much of a cognitive shortcoming as it is an honest signal of loyalty. If Alliance Theory is correct, then ideological beliefs may be as fundamental to the human condition as friends, rivals, and social life itself.
