Holy cow, does that analogy fall flat.
Homosexuality is a moral (or rather immoral) CHOICE.
It simply cannot be compared to a morally neutral biological function that occurs when the body functions the way God designed it.
If that’s the best you can do, you have no case.
Some would argue that heterosexual intercourse were a neutral biological function. Some would argue that homosexual intercourse were a neutral biological function. Just because you keep saying over and over again: Its a CHOICE,Its a CHOICE,Its a CHOICE,Its a CHOICE,Its a CHOICE,Its a CHOICE,Its a CHOICE,Its a CHOICE,Its a CHOICE,Its a CHOICE,Its a CHOICE,Its a CHOICE,Its a CHOICE,Its a CHOICE,Its a CHOICE...doesn’t make it 100% so. I say keep saying Its a CHOICE,Its a CHOICE,Its a CHOICE,Its a CHOICE,Its a CHOICE,Its a CHOICE,Its a CHOICE,Its a CHOICE,Its a CHOICE,Its a CHOICE,Its a CHOICE,Its a CHOICE,Its a CHOICE,Its a CHOICE,Its a CHOICE for a thousand years...and still there is not 100% certainty that it is so. Therefore, you must give room for the percent of doubt to exist in God’s creation. Otherwise, you are being God yourself and I am at least 99% certain you are not.