Dude, no, it's none of them.
Homosexuality is just a thing in life. It has no connection with population control.
Also, we haven't cleared the SHIT out that homosexuality is a choice. You have, and some others, but not me, so its not we. But, i will accept your proposal to move the discussion along, as i see that i am not going to change my thoughts, and that you all are too afraid to realize the truth. How about this as a questions though:
If you are gay as a middle schooler, and you see a straight guy that you like, do you tell him that you want to go out with him? Yes or No and Explain Why.