My 9th grade HS foreign language teacher was so harsh with his students that a HS classmate who is now a tenured Prof at an elite university nearly dropped out and had serious anxiety attacks as a result and made 3/4 of our class cry at one point or another. I was one of the 1/4 who didn’t.
Thankfully, the now tenured Prof HS classmate had clued in parents who figured out what was going on and was advanced enough in the field that they forced the school to transfer him to a much more amenable and frankly better teacher.
Just because some students can withstand and sometimes even thrive in such an environment doesn’t mean that the students who couldn’t were “oversensitive” or that the teacher should have been kept on.
IMHO…such teachers/Profs with such attitudes/behavioral traits should be assessed and declared unfit to teach in the classroom.
It might be a different matter if we’re talking military basic training or officer training like what my father received during his university years in Taipei in the '50s…but that’s not the purpose of K-12 or most colleges…and most students didn’t sign up to be treated as the captive audience by teachers who have delusions of being star comedians or sadistic military drill instructors.