If people want to send their kids to a school that is a social, single-gender and/or religious ghetto in an attempt for them to meet the "right" people, keep away from the "wrong" people, live out the dreams of their parents or continue some unbroken line of inherited bigotry, they should pay for it themselves.
From this opinion piece. Couldn't agree more.
Put a different way, as my public school teaching uncle said it, you don't get a rebate from the government for not using the public swimming pool when you install one in your backyard.