Comment by zdragnar

They are chased out of academia. I knew professors who were proudly, vocally socialist but the professors who had any conservative leanings were very subtle about it.

You don't get tenure if your fellow professors don't like you, and they've created their own echo chamber long ago.

In contradiction to your point, the conservative professors and teachers that I knew were not in arts humanities at all (with one exception in law) but in crunchier fields like economics. The STEM and maths professors didn't talk social topics at all, so it is impossible to know what their feelings were.