I would maybe edit my own original comment to say that radfems engage in "gender essentialism" more broadly because it's not always necessarily bioessentialism, though of course bioessentialism is a huge part of gender essentialism. And yeah, I totally feel you on how this whole thing always becomes about cis men's feelings.

I should also clarify that I put "hates men" in quotes just because I know that a lot of chuds claim that feminists hate men when they don't actually hate men, they're just angry at patriarchy. I know what you're talking about with the whole over-the-top "kill all men" takes though, and those are definitely gender essentialist, and the material effects of those statements are directed towards transfems and non-transfem AMAB nonbinary folks rather than cis men. Intersectional feminism and transfeminism are the way to go!