Let me start off by saying that I’m not anti-gay. I support homosexual marriage, heterosexual marriage and even a few dozen types of polygamous marriage. No reason any form of love should be excluded.
Often times, as soon as I state that homosexuality is anything but a genetic factor (I’d like to say condition, but that typically carries negative connotations which I do not intend), I’m immediately told I’m wrong and dismissed, as if I’ve just stated the Earth was flat. I’ve noticed that more often than not, people hold sexuality as a genetic or environmental thing far more often than choice – at least among those who support gay marriage. It seems that by implying that it might be a choice, you’re some how implying that homosexuals shouldn’t be allowed to marry.
Let me make clear that I am in no way implying that, I’ll explain a bit later.
I’ve seen – dubious – scientific studies about finger length and brain structure being (very tenuously) linked with homosexuality, which is linked with slight differences in hormone levels (testosterone and estrogen, typically, I believe). However, I’ve never seen any scientific evidence of which causes the other, if there’s a casual link at all.
It’s been well established that environment, activities, even regular thought patterns, can change the levels of hormones in the body significantly, especially over time. I remember an article about a study of sedentary individuals turned athletic part way through life that indicated a permanent change in testosterone, even after they became sedentary again, with the boost in testosterone being directly related to the amount of time they were athletic – unfortunately I cannot find the article, I’m probably using too many search terms. So why is it unreasonable to assume that the, if it is at all, choice of homosexuality has an effect on the hormones of the body? If working out can do it, why can’t sexuality?
That is to say, I find this explanation as reasonable (even if it was poorly articulated by me) as the idea that a different brain structure causes homosexuality.
And, as for whether or not it matters if it’s a choice, why? Religion is a choice, and race is genetic. Both are protected, so why shouldn’t sexuality? And at that, there are people who will claim, no matter the evidence to the contrary, that their religion isn’t a choice, that they’re Christian/Jewish/Hindi because of a calling, as I’m sure there’ll be those who claim the same about sexuality. What’s the effective difference?
I put this in GD, instead of GQ, because I suspect this will be a debate. And, because I don’t think there’s conclusive evidence either way.