My youngest went to public school in ultra democrat mont county md, which has one of the best school systems in the country. She has never been taught anything like this.
When I was in school, we didn’t not learn anything like this until college-level courses, and even then, they were usually electives or course taught by specific aggrieved professors that one could avoid pretty easily.
I did actually have a class in high school that taught this nonsense, but that was at a state academy which pretty much taught college level courses with college professors in all the classes. Most kids, at that time, probably wouldn’t get it in high school unless they were very unlucky.
Now, I can’t comment on what they are teaching nowadays, maybe things have changed.