Some problems... don't have solutions.
The U.S. public school system is becoming such "a problem".
It can't be fixed.
The only alternative is for parents to send their kids to carefully-chosen private schools.
My choice would be one of the former "white segregation academies".
Although they're no longer "whites only" (most do admit a small number of nonwhite students), I sense that they're among the few schools left in the country that unabashedly teach kids from the viewpoint of traditional Western/Christian civilization and its accomplishments.
Either that or homeschool.
Perhaps groups of parents in a local area could create their own "one-room-home-schoolhouses", with either themselves teaching, or a hired tutor or two.
I can't see why ANY traditional-minded white would commit their kids to the "public" school system today. And what's going on now is but a preview of what's going to come in the future, comrades...