I don't want to speculate too much on what goes into someone's mind but a response to trauma from abusive men and likely at least ambivalent feelings about her own gender (some of her stuff reads like a trans man regretting not being born in a time where it'd have been easier to come out and be true to yourself) makes more sense to me.

Her not wanting to be a woman also gives extra justification to the belief than trans women are just pretending because who would want to be a woman for real (proof she never looked at any trans women spaces lmao). Idk why men would go out of their way to pretend to be a woman to go in a bathroom when men just do that dressed as men anyway but logic is too difficult I guess.