Whatever Israel, Hamas, Gaza, Syria, Egypt, Iraq, Iran, Jordan etc do to each other has no vital implications for the United States. By contrast, what goes on in Mexico and Central America does have vital national security interests for the United States as long as we have porous borders.
If what goes on with Israel and Gaza has no vital meaning for the United States, why do we pay so much attention to that conflict? Because it involves Jews and Jews are smart, accomplished energetic people who have a disproportionate influence on the world and in particular on the United States’ media. By contrast, the Arabs don’t seem to be building civilization.