It angers me that this has gotten so politicized. We politicize so many more things than need to be. Why, for example, is the concept that "we should take care of the environment we live in" so politicized is beyond me.
Similarly, here. If a person says to themselves, and the world, "I don't feel like my gender matches the sex organs I was born with," why in the world is this such a hot topic. It drives (some) conservatives out of their everloving minds.
Ok, based on an earlier response to me:
1. A person's biological sex (or sex organs, i.e., the "parts" that you were born with), is considered by many, including me, as a person's "sex." This refers only to physiology. What a doctor's examination would conclude.
2. A person's gender (in the past referred to many ways, including "sexual identity," but I think "gender" is less confusing), is how a person conceives of himself when he/she thinks "am I a boy or a girl."
(as an aside, "gender identify" is unrelated to preference of gender of someone's sexual partner, but I'm assuming you know that. Let me know if I need to speak more about it).
That's my understanding of the difference between sex and gender. For the vast majority of people, a person's gender identity matches his/her biological sex. Some people it doesn't. For the people where it doesn't match, the vast majority have no affect on the world outside of them one way or another (other than, maybe, being really annoying about it at the quad at college campus; but good grief, you could say the same thing about Smith fans or any other 19 year old that just discovered something new about themselves).
A few people do represent some sort of issue to be resolved. One being athletics. It's not really fair to let someone with the testosterone equivalent of a male compete against females, but I can't really get worked up about this. This just means we have to find a thoughtful way to address it. Maybe another is the military or something. And finally the bathroom thing, which conservatives seem to go nuts over (why is this a liberal conservative thing? I don't know, but liberals seem to support gender identify as a construct and conservatives seem to ridicule it. Please correct me if you think I'm wrong about that).
For the life of me, though, I don't know what there is to say about it. Seems pretty simple and straightforward. What are you confused about? What would you like clarified? Barring that, do you have something you'd like to say about it?