LOL! I'll tell you what he is essentially asking and it's a question I've asked the "it's a choice" people before.
If your sexuality is a choice then all you guys must go out every day and look at men and women's asses and think, "Mmmm mmm, I'd sure like to have me some of either one of those." "But I'll suppress the urge to mount that man butt cause God wants me to stick with p####."
Is that how your day goes? Cause mine is nothing like that. I am not attracted to men. I could not feel romantic love for another man. Therefore my sexuality is not a conscious choice for me. And it never has been. Since I've been old enough to have a sexual thought or urge I have only been attracted to women. So if it hasn't been a choice for me, how can I point my finger at others and say, "oh but for you it was a choice." Seems an unfair double standard to me.
A lot of people in this country claim they believe in freedom but really they do not. What they really believe is that people should be free to do things they agree with but restricted from doing anything they don't like. Even when the thing they don't like will have no tangible effect on their lives.
As a heterosexual male I find the thought of two men having sex disgusting. But despite that what two consenting adults do sexually isn't any of my business. And whether they get married or not has absolutely no effect on my marriage or my life. So as a true believer in freedom why should I be opposed to it?