Quote Originally Posted by Alpha View Post
Correct. And my brother snores, and I don't. My eldest brother barely crawled before he walked, whereas I spent ages on all fours. I eat very slowly, my brother was dubbed 'garbage disposal machine' by my father due to the rate at which he ate.
Snoring or not, crawling or walking, eating slowly or eating quickly, none of which affect whether or not somebody can reproduce.

Do I need to go on? The wonderful thing about 'naturalness' is that it has an innate and fantastic diversity. I like women, what's to stop one of my brothers liking men, and why would it matter if he did?
Many other species are natural as well, why shouldn't we be allowed to conduct sexual relationships with them?

Moreover, why do you feel that the state is barely allowed inside your wallet, but want it involved in the legality of whether two adult, rational human beings can form a legal bond?
A legal bond ... you mean, like a civil union, which entails all the rights of a marriage, which homosexuals are allowed? Or do you mean the religious bond of marriage, and a church forced by the state to conduct a religious ceremony against its own religion?