Yow - that’s terrible. How was that principal hired? Was there any parental involvement / school board / or school council advise & consent role? Sounds like there was a coup!
My eldest is home-schooled; #2 son is in an uber-traditional all-boys school run by orthodox, habited Catholic monks. (e.g. the boys stand and await to be invited to sit down by the instructor when he enters the classroom.)
Unfortunately, due to confiscatory taxation practices, my youngest two have to endure public school for now. TBUG we live in a “good” school district academically. I haven’t experienced any radicalism there yet but I’m biding the time.