Why doesn't everyone see that? Or do they and they're also taking pleasure in what lies ahead because they also hate women (even if on a subconscious level)? I genuinely can't tell.
I wonder about this too. I don't think most TWAW advocates/trans allies consciously think hurting women is a great thing. But it feels as if when an idea or ideology comes along, if it shits on women it will embed itself more easily with people, without them necessarily seeing that. And it seems quite easy for people who really do have bad intentions against women (such as convicted rapists, or misogynists who just enjoy hurting women), to use it to their advantage and people will let that through.
I think at some level people (including many women) think it's "only" women suffering, not some actual oppressed group in need of special attention. And the feeling women don't really matter that much is ingrained in society and in us all.
And because society feel like this about women, standing up for women's rights gets you labelled aggressive, unkind, TERF etc whereas standing up fo the "approved" oppressed groups is a way to virtue-signal. (I know some people don't like that term but I 100% see it going on)