"Or . . . I don't get it. I just don't get it. Why is this even an issue?"
I meant that. I just don't get it. I'm a straight genetic male. I get that I'm an attorney and I get that I have the benefit of a better education than most people because of my profession. But seriously, is it so hard to understand that in 2014, regardless of your educational background or your degree of urbanity (or lack thereof), that certain people are transgender? I mean, is there anyone who still doesn't get it, other than for religious bigotry?
So let's assume everyone reasonable "gets it." Let's further assume that regardless of whether or not most people are confused or even afraid (though I could not imagine why) of the concept of someone being a transgender, that they still understand that psychology sometimes produces gender dysphoria and that certain people have to change their birth gender to suit their emotional and psychological gender (the one that they feel inside from a pretty early age).
You get that? Does everyone get that? OK, let's move on.
Most of the time, when someone changes their gender from their birth gender to the one they feel inside, they become a "straight" member of that new sex. For example, nearly every male to female transgender person I've met became a "straight" female after she began her transition. Before each person admits that they're a transgender and begins the process of transitioning, I suppose that they'd be perceived by others as homosexuals who affect the behavior, clothes and (usually) sexual orientation of their eventually intended gender. That's if you're tied up in labeling everything.