The correct response is:
“Prove to me that a man can get pregnant.”
“Just because you say its possible, it doesn’t make it is so”
The professor is too scared of being doxxed, protested on, sued, etc. that he prefers to cower rather than lose his job and comfortable position.
In fact, that’s the problem in America.... from the halls of education to the boards of our major corporations, we are no longer the land of the free and the home of the brave.