Let me point out the fly in the ointment: in the enlightened SF Bay Area high-flying tech workers who would never dare be associated with anything less than 100% liberal leanings... still send their own kids to private schools rather than a public in East San Jose, for much the same reasons.

And this is generally true. Ask any of these enlightened non-racists if they would send their kids to a school in Compton, and watch them squirm.