Government schools are indoctrination centers. Period.
It would almost be okay to let California go just to see its Constitution.
Wouldn't you just love it if a USSC case extended that idea, so as to allow us to be exempt from paying local taxes to support a K-12 system, as long as we can demonstrate a sufficient level of evidence that we are paying property taxes to have our kids politicized?
Within seconds of any secretly recorded anti-GOP or Trump-Derangement-Syndrome Teacher Tirade video hitting the 'net, their butt would be hitting the pavement and their desk contents following a minute later, and they'd be unemployable by any Public School system in the US.
Doing anything that threatens the Bottom Line of a school district would self-enforce a de-politicization of ours schools so fast your heads will spin.