ChatGPT says: Alliance Theory explains the rise of abortion to the center of American politics as a coalition realignment problem, not primarily a moral awakening.
Abortion became useful once older alliance structures collapsed.
Before the late 1960s, American politics was organized around New Deal economics, Cold War foreign policy, labor, and regional blocs. As those structures weakened, especially after civil rights fractured the Democratic coalition, elites needed new issues that could reorganize loyalty across class and region. Abortion was unusually well suited for this because it cut across existing economic interests and allowed new coalitions to form.
It solved an elite coordination problem.
Abortion is symbolic and emotionally potent. That makes it ideal for alliance signaling. You do not need to resolve policy details to take a side. You just need to declare moral allegiance. This allowed parties to sort voters without negotiating material tradeoffs. Alliance Theory predicts moralized, low-resolution issues will rise when coalitions need fast sorting mechanisms.
It helped unify the post–civil rights right.
After segregation became politically toxic, conservative elites needed a new moral axis to unify evangelicals, Catholics, and secular conservatives. Abortion filled that role. It allowed religious groups to be mobilized under a universal moral claim rather than an explicitly racial one. The “pro-life” frame created a shared identity that could override theological and regional differences.
It helped professionalize and moralize the left.
On the left, abortion rights aligned with a growing professional-managerial coalition emphasizing autonomy, expertise, and liberation from traditional authority. Framing abortion as a fundamental right helped solidify alliances between feminist organizations, legal elites, medical professionals, and universities. Defending abortion became a loyalty signal to this elite network.
Courts made it permanent.
Roe v. Wade moved abortion out of ordinary legislative bargaining and into a constitutional frame. That transformed abortion from a policy dispute into a regime legitimacy issue. Alliance Theory predicts that once an issue is constitutionalized, it becomes a permanent coalition marker because backing down signals total alliance defection, not compromise.
It replaced class conflict with moral conflict.
Abortion allowed politics to shift away from distributive economic fights toward identity and values. This benefited elites on both sides. Moral conflict mobilizes voters without threatening donor interests or institutional power. As economic consensus hardened in the 1970s, abortion absorbed political energy that might otherwise have gone into class-based redistribution.
It disciplines internal dissent.
Because abortion is framed as life versus murder or rights versus oppression, deviation becomes morally radioactive. That makes it a powerful tool for enforcing coalition discipline. Politicians who hedge are punished not for policy inconsistency but for moral betrayal. Alliance Theory predicts central issues will be those that most efficiently punish fence-sitters.
It persists because it still works.
Abortion remains central not because it is unresolved, but because resolving it would weaken its alliance value. Each side needs the other as a moral antagonist. Even after legal changes, the rhetoric intensifies because the issue’s function is coalition maintenance, not closure.
Bottom line.
Abortion moved to the center of American politics because it solved multiple alliance problems at once. It reorganized coalitions after civil rights, provided a durable moral sorting mechanism, displaced economic conflict, and allowed elites to enforce loyalty at low material cost. Its power comes less from the act itself than from its unmatched usefulness as a coalition boundary marker.
