As my recent min-debate with "the Lisa I can't find" demonstrated, and as I've said, some transsexual women will always arrogantly condemn the "mere crossdresser". It's human nature. That doesn't mean such foolishness needs to be treated with anything but disdain, but it does provide a background for the resulting shrieking, crying and carrying on. There's nothing that can be done about the basically emotional prejudice of these people; they'll be prejudiced against someone, it's just a question of whom! Coupling all of that with the always-present "free speech for me, but not for thee" thing so many people love, and you have a template that is faithfully followed every time.