Is my professor being ridiculous?
So I had an assignment in english where I had to watch a documentary on flat earthers. And so for my first assignment we had to right a paragraph of our reactions.
I wrote what I thought including referring to flat earthers as "morons" and "living in a fantasy land" and a few derogatory things like that. He graded my summary and wrote that
"You met all the requirements for this assignment but your hate towards flat earthers is uncalled for. You act like they are totally wrong when its really just a different viewpoint that you need to respect even if you don't agree with, so I gave you an 8 instead of 10"
Is it normal to be super fucking pissed at this and how petty it is? Or does my professor have a point?