In reality though, isn't it not going to change because the people that care/are in a position to care leave? I get that parents want the best for their children and I don't fault them for that, but I don't see it changing if people are like "Yeah it's bad, so I left, I wish I could help from over here."
it would be a travesty to yank the remaining funds from the public schools in order to subsidize private schools that are less accountable, typically religious, and usually much more expensive than the value of the vouchers. It would likely increase inequality and delay reform of the public schools.
If there's one thing that brings out the classism in people, it's kids. Even hyperliberal San Francisco had to give up on randomized school assignment. Wealthier parents just won't send their kids to the public schools in places like Baltimore. If you don't make it an option to have vouchers or "enclave" schools in wealthy neighborhoods, they'll just leave for the suburbs. And your tax base will go with them, and then you'll be Detroit.