A question about gays/lesbians

[Deaths_Melancholy]

Umm just posting my thoughts on this...

I think that the factors for being gay are hormonal and environmentally influenced. Now I know that the genes eventually control how much of what hormones you got going on in the blood, but you never know if the parents smoking or something affected that in the long run. Please do not flame me on this post as I do not hate any gay peoples untill they decide to make me uncomfortable by staring or something. Slight genetic differences can change a lot of things... I personally think it's more upbringing and environmental, as is with most things. I'm not saying that it isn't freedom of choice. There are probably a decent pecentage of gay people who do choose it without other factors. And now to answer the topic question. It cannot be just a gene that causes it, seeing as it just hasn't disappeared off the face of the planet, and genetic mutations take hundreds of years to form(as there are no offspring being produced to continue the gene spread. which is also now making me think whoever started this thread has no logic... If it isn't gone and nothing to spread the gene then it cannot be just the "gene" that makes it happen).

Overview: Cannot be just gene or it would've just dissappeared already.
My standpoint is that a "gene" could help but isn't the main factor

edit: forgot to throw into the overview that I AM NOT against gay people. I also have many gay friends and am usually comfortable with them around as long as they respect me and do not make me feel uncomfortable

edit2: in the main paragraph somewhere... meh.. more of my opinions.