There are many inclinations to wrongful behavior that are understood that people have, but the acting out that behavior is not accepted.
So then, you do at least appear to be implying that acting on a homosexual inclination is a "wrongful behaviour," is that correct? Further, it seems you imply that not accepting that acting out is justifiable if you happen to believe it is wrong, is that correct?
But what does it mean to say that a behaviour is "wrong?" Is eating a cheeseburger in front of a Jew wrong? How about a pulled pork sandwich? Is surreptitiously trying to accomplish a little extra work on the Sabbath, or doing your taxes to stay ahead of your busy work-week, really a wrong behaviour? The Bible certainly says so. Would you find those acceptable, or would you feel the need not to accept them, too?
You see, I have never, in my entire life, encountered one single person who could articulate just who was hurt, or how, when I made love to my partner. But perhaps no actual harm to anyone, anywhere is necessary to make an action "wrong." Maybe it just needs to offend God, yes?
But then, how would you know? Do you have a channel that tells you what God feels? (The ancient writers of the Bible clearly thought they did, as -- by the way -- did Mohammed and Joseph Smith, but you can see why I might find that a bit suspicious, given the conflicts.) And what's more, there are entire churches, Christian ones, that have carefully considered the topic and have come to the conclusion that perhaps it is not a "wrongful behaviour." The United Church of Canada (one of our largest), and the Anglican Church of Canada (along with some Episcopal American churches, Liberal and Reformed Jewish communities, and many others). They seem to have decided, along with much of the world, that "wrong" really means doing something that hurts somebody. Almost nobody murders their adolescent son for masturbating anymore, for example. (Especially those who can remember back to their own adolescence.)