They might get to that. Only after they:

• Remove all “objectionable” books from schools so their kids don’t learn that black or gay people exist
• Institute religion, morning prayer, the bible, etc. back in schools
• Gerrymander the public school district to make sure the black/gay/poor kids aren’t attending the same schools as theirs. Sure, those kids can have the opportunity to attend schools not in their neighborhood under state “school choice” laws, etc. but golly gee darn the waiting lists are years long, dontchaknow.
• Ensure that their children are attending the newer public schools that have more robust security measures while the rest of the district are still going to school in buildings that were built when things like electricity were still an optional luxury and modern security would be nigh-on impossible.
• If all else fails, they will hire private home tutors.

I will bet the left body part of your choice that all of those things would happen long before they actually did anything to try to improve the quality of the schools. Remember, half of these people are about to vote for a candidate who says the department of education shouldn’t exist. They’d destroy the entire system before they’d try to improve it.

Remember the saying “If conservatives become convinced that they can not win democratically, they will not abandon conservatism. They will reject democracy.” The same thing applies here, except it’s the public school system.