I wish I knew how to fix public schools. It certainly not with more money. IIRC the USA is in the top 10 on money spent per student. Arguably a bigger issue is all the other problems in areas with bad public schools like poverty and all the problems that come with it.
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.
It isn't perfect, but it seems like attracting interest via magnet programs works a lot better than throwing more money at failing schools or unequal access to charter schools.
Yea I realized after posting that the wording is probably not quite correct. What I meant is there is a single school that serves the entire district. Technically, there are several buildings, but they are broken up by grade elementary / middle / high schools.
Where I grew up there was a gang fight at the public school where one student stabbed another.
Perhaps. In the US, there's the small matter of the 14th Amendment.
Granted, I live in the midwest where public schools are, as a general rule, pretty good. One of the reasons we moved to the town we did though is that they have a unified school system. I heard too many of my more well-off acquaintances making offhand comments amounting to "oh, you don't want to move there. They go to the poor people school."
If you think good schools are a public good, put your family where your mouth is.