ANGRY: Just read a bunch of articles about the supposed discovery of a gay caveman. I have no doubt that gay cavemen existed, but the reasoning for thinking that this particular skeleton was gay ("a homosexual or a transvestite" were the only possible conclusions that these articles came to) is that the skeleton was biologically male, but buried in a way that we have only previously found females buried.
I hate to break it to these scientists, but not all cultures in history have viewed sexuality as having anything to do with gender stereotypes. Many cultures throughout history have accepted homosexual behaviors as the norm, without our culture's stigmas of "gay men are girly men" or "lesbians are butch man haters". There are plenty of cultures throughout history that accepted transgender, gender varient, and dual gendered people as existing, and respected that those things were okay.
Obviously they couldn't have sex changes at the time, but is it so fucking hard to conceive of the notion that there might have been a caveWOMAN who was born male? A trans person shouldn't NEED to undergo surgery to be considered or treated in a way that makes them feel comfortable. Are we that behind as a culture? Is it really possible that we, now, are less accepting and understanding than cavemen?