It happened, in realtiy.  So why are they NOT teaching about this in every school already anyhow???   It's stupid to try to pretend that history didn't happen, just because some people don't like the fact that it actually did happen. 

That's how stupid America is acting these days.  Trying to deny reality and make up their own "truths and realities" as if they actually exist.  We have to go with what really and truly happened, not what people PREFER to have happened or PREFER to disregard.  Societies don't work that way.

https://www.washingtonexaminer.com/news/oregon-to-require-public-schools-to-teach-about-the-holocaust