>In many states, the vast majority of school funding comes from property taxes. So schools in wealthy neighborhoods are better funded than schools in poor neighborhoods, and this guarantees homes in wealthy school districts maintain their value since everyone wants their kids in those schools.
In the US, school funding is (on average) progressive because federal and state funding more than offsets any local inequalities. See https://randomcriticalanalysis.com/2017/06/22/no-us-school-f...