I taught critical thinking for 20 years, and I thought this video was an excellent example of a teaching job well done. Two other comments: 1) My bet is that no one came to the school and complained. The school fired him because they were afraid that someone might complain. Most of the excesses of so-called wokeness are caused by bureaucrats who are afraid of wokeness. 2) this shows why tenure is necessary. If teachers are not free to teach the truth as they see it, it becomes impossible to speak the truth to power.