I hear the trauma and anxiety, Posh. I know it's real and I'm so sorry you're going through a bout. I hope you'll be able to substitute a different class.
I wonder if you could talk to yourself as a friend in the meantime, in ways that tell you are safe. You are strong. You do not have to "believe in" a version of teaching that is upsetting to you. You might be extra kind to yourself, and acknowledge that this has made you feel fragile. (I had to learn to talk to myself tenderly.)
I hope you might be able believe that you are stronger than you know, and that probably this man, or this unconventional prof, is not evil. He may just have an academic ego (flip that and it's insecurity) and have had his head stuffed with concepts that don't make sense for you. I don't know if what's been happening in the world plays into it, but he might be "wrong" but sincerely believe he is helping, or doing good. He might desperately want to make things better but be going about it the wrong way. Fear works both ways sometimes.
Meanwhile, you have the right to accept or reject whatever knowledge he's trying to impart. You do NOT have to agree or accept or be changed by it. Likewise, though, you shouldn't have to fight in terror to survive just...words.
I believe you won't find yourself being hypnotized or brainwashed by an odd or even repellent professor. I think you are highly intelligent and can filter what comes in, and eject what you want out. I imagine looking at him with his mouth moving and using a little mantra: Yap, yap, yap. You have no pants on. (When I used to have panic attacks I would use all sorts of inner "tapes" to calm myself.) Some were ridiculous, some were just simple: I am safe, I am okay, I'm going to take deep breaths now and trust that this is only an anxiety or panic symptom. I know what it is, it's not going to kill me, and I know it will pass. Other times, if it got too bad, I would find therapy and have someone kind and wise help me be stronger than I could be at that time on my own.
If filtering feels overwhelming, then you need an ally. Where could you find someone who is professional, who does understand psychology, and might be able to help you sort through this experience so you can leave it behind?
You're entitled to feel what you feel but also to have help, and peace. You deserve it.
hugs
Hops