A logical decision that can at any time be reversed, is not considered a mental disorder. It's "RETARDED" I have to even explain that to you.
No, no, no, no! Don't backtrack, you sweet bwoy. Stick to your guns.
Your argument was:
1. People with mental disorders are people who do not function normally.
2. Childbirth is a normal bodily function.
3. Homosexual couples cannot experience childbirth by natural means.
4. THEREFORE: homosexuality is a mental disorder.
Now you're saying that a person can "logically choose not to partake in a natural bodily function." Therefore, in Dooby-Land, if a person can "logically choose to be insane" then he's not insane.
Moreover, if homosexuality WERE a choice and not genetic (ex: I cum better when I fukk members of the same sex. If I am monogamous, I will not get STDs. Therefore I logically choose to be a homosexual) then, in Dooby-land, Dooby is pro-homosexuality. So you're saying that homosexuality BEING A CHOICE is actually an argument FOR HOMOSEXUAL RIGHTS. Brilliant!
Any hey, you know what else is a natural bodily function? Walking. Imagine a man who got his legs blown off in Iraq can't walk. He's inhibited from walking by something other than his logical choice to refrain from walking.
Here's a hint. Pursuant to insanity, "functioning naturally" doesn't have anything to do with "natural bodily function." It refers to MENTAL function. A person who's constipated and can't fulfill the natural bodily function of shytting is not insane.
In order to prove mental illness, you'd have to prove that gay sex prohibits regular MENTAL FUNCTION. And since you've admitted that a logical person can easily choose not to have children, then it's obvious sanity doesn't have anything to do with bodily functions in general -- like sweating or bleeding.
And guess what? You can't!