[isbwkisbakadqv]

Banning private schools is an extreme position, but I see some sense in it. Here's how I think about it.

It tends to be the wealthier, better connected, more influential people who send their kids to private schools. So, we have a situation where the influential people don't have a lot to lose if public schools happen to be under-funded (their kids get private education). So it is more politically tolerable than it should be to under-fund public schools.

[DuskStar]

Until the rich/influential people find a school district in an area with extremely high housing costs, and give it a ton of money. Which ends up making a "public" school with a lot of the qualities of private schools that you seem to dislike.

Of course, the above already happens.