I think we need to be extremely careful about word choice and examining the underlying sentiments when talking about anything that goes anywhere near ‘trans women have male privilege.’ I’m not saying that’s what you’re doing or that you believe that, but arguments that hinge on gender essentialism (which I believe a lot of the AMAB/AFAB ‘discourse’ winds up being/turns into) should be avoided. Both because gender essentialism in general is a flawed lens to view the world with, and because I don’t think I’ve ever once seen a productive conversation about it. At least not online.
I’m a trans guy and I’ve seen the kind of behavior in the OP online for around 20 years and I have no hope it will stop any time soon. It’s depressing AF and the only solution I’ve found is to drop spaces that tolerate that like a hot potato. That’s a lot of potato dropping, but it’s better than hanging around a space with people who make you miserable.