> I wish I knew how to fix public schools. It certainly not with more money.
IIRC "busing" is the most effective thing we've tried—wildly more successful than anything else—but approximately everyone (including a lot of people who weren't rich whites) hated it so we don't do it anymore.
Given that selection bias is a big part of what makes a typical "good" school good it's a hard problem to solve without some kind of social-engineering thing like that that mixes everyone up, though that comes with its own problems, especially if it's still possible to escape the system (moving even farther from the city to areas that aren't doing busing; private schools).
Very early (like... kindergarten or 1st grade) tracking or something like it would probably make mediocre schools more appealing for somewhat-well-off parents and counter the tendency of the rich-enough-to-leave but not-rich-enough-for-private-school set to flee the city when they have kids, since it'd isolate the good students from the bad to replicate some of what the suburban schools benefit from to let the "middle" and "high" cohorts do fairly well even at so-so schools, but there's pretty much zero chance the optics on that would be acceptable.