It's fucking retarded, a mental illness. What's so bad about having a penis or vagina? If you weren't born in this era of social retardation you wouldn't even think about it twice and live on with your life.
People need to learn to accept their own bodies. Surgical procedures for transitioning are pure madness because a maimed body is worse than the original and as soon as they realize it, there come the regrets.
If it's just about sexual orientation, if one makes an effort they can choose what to get turned on by. It's just mental stuff that can be trained one way or around.
What matters is that you decide to be hetero, gay or bi. It's a choice, not something you have necessarily suffer passively.
Since there's a very weak genetic prod to the sexual orientation, one might just as well pick what they want to be and stop aggravating the whole population with inexistent issues and retarded victimism.
If you really want to be picky the true sexual orientation we're born with is perversion.
Yes, until you reach a certain age the only thing that can get you a hard on are random perverted thoughts, not sex. Because sexual attraction only starts being developed from 9 years and beyond.
Why are we innately perverted? That's out of scope but may be related to when we were simple lifeforms, maybe a drive to break and control and some other sutff picked along the way that doesn't translate well with our modern brains.
I personally started masturbating at 5-6 eyars old and I had no fucking idea of what sex was, only later in life I started appreciating tits and asses.
Because I have spent effort in working out how my mind works, I can literally turn off and on sexual urges, fetishes and whatever perversions.
If I can do this then everyone else can, it's just a matter of practice and effort.