Religious flamewar is not allowed on HN, so please don't post like this here. We don't want flamewars generally.

https://news.ycombinator.com/newsguidelines.html

I definitely don’t want religious brainwashing. I also definitely do not want the indoctrination that is taking place in our public schools.

Which places have school vouchers today?

Besides, the state can mandate a minimum curriculum which includes civic education to receive the voucher, with the state managing standardized end of years test for the mandatory curriculum.

The options to handle it well are there, society just needs the will.

You should not make that point. Society works much better if you accept the wierd beliefs of as many people as you can. Fight againt cannibalism (does any of that even exist anymore?), but be very careful about even that.