I refute your arguement with ug, ug, ug-ug, ug! ^.^;;;
I don't think it's technically that, but perhaps that it's effectively that. I mean, it seems like normal people group the three as one kind of person to deal with, as implied.
But...I think the thing is that these misconceiving people think that straight women are ornery (but only uptight as a more of resulting trait of being ornery), transwomen don't want to man up, and flamboyant gays are fascinated a kind of wrong way towards manliness.
I personally do not feel that this is a particularly American nature, though. It's probably just more apparent because the American culture has gone through less years, so it hasn't settled into its citizens' minds the way other cultures have settled, by the time everyone started hitting the apparent revolution towards open-mindedness. I would argue that Japan probably has it much worse with the stated mindset, since if I recall correctly, there is pretty severe sexism of women not really being able to go as far as easily as would a man. (Who would be expected to be the head of his family's bloodline.) I wouldn't be surprised if as much as their media makes it seem like they handle it ok and openly, that they are in fact pretty cruel about transsexuals. D:
I hear that supposedly Brazilian culture is supposedly receptive about transwomen (and probably ciswomen and gays?) but from what I can tell, it's hardly so friendly with transwomen, and probably not drastically better with straight ciswomen and flamboyant gays.