This is literally true.
School vouchers were pioneered as a way to help white supremacists send their kids to a new wave of private "segregation academies" created expressly for the purpose.
From my book WHITE FLIGHT:
School vouchers are a re-segregation tax, in which everyone is forced to pay the most racist white people so they can avoid sending their kids to schools with minorities.
The only plus side is that the schools suck and don't help their kids get into better colleges. 🙏