It is not about player freedom except in the broadest sense. If it was about player freedom, that is what the title would say, and player character sixuality would only be one of many subjects being discussed.
If this thread was about player freedom some of the things we would be discussing would be:
Why am I always forced to play some 6'2" hulking giant? Why can't I be a 3'11" action hero?
Why am I always forced to play some wet behind the ears snot nosed kid? Just once I would like to play some crusty old fart that has seen enough of the world to know that maybe honking off that deathclaw while armed with a pen and a brick might not be the best of ideas.
Why am I always forced to play a human:? Just once I would like to play as an intelligent radroach.
There are all kinds of "player freedom" subjects. Those are just some of the subjects. And yes, "Why can't I determine my character's sixual orientation?" is one of them. BUT it is only ONE of them.
This thread isn't about "player freedom" it is about ONE aspect of it.