public school segregation is unconstitutional. As for white kids going to private schools, I am not sure what can be done about that. This is America, if you have enough money amd want to send your kids to private school, you can.
Sure, but you can make sure public schools have the resources to provide an adequate education. The trick is that wherever most of the white kids go to private schools, the (disproportionately minority) public school system can, and does, go to hell from lack of funding.
Also, my experience is that school segregation happens everywhere as a function of housing segregation, which is also a serious issue. But in some places, the school segregation is out of proportion with the housing segregation, which is what I was talking about. And that’s not even considering places like where I went to school, where the school was integrated, but the individual classrooms were not.