But the problem we realized, after trying out forced busing, was that in the long term all parents with resources would simply opt out of the public school system to avoid it.
Because schools are a reflection of the students they get. Private schools do better not because they teach any better, but because they keep out the ones that aren't there to learn and thus the teacher can actually spend their time teaching a group of kids at the same level.
I believe it has been proven that as communities become more integrated, outcomes improve for all parties — and not just academically.
One Source, since people seem to disagree: https://www.washingtonpost.com/posteverything/wp/2015/10/23/...
Something more academic: https://gsppi.berkeley.edu/~ruckerj/johnson_schooldesegregat...