This is an old argument. People will choose wrongly or not as to the kinds of things they will do. The only judge of wrong and right is God Himself, but the Bible provides the guidelines. And in Old Testament and New, the guidance is pretty clear. I don't think it's our place to judge "gay" people. This is something like any other personal issue, which is between the individual and God. It is best addressed in prayer by the one who is (or is considering being) gay. Those who say they are women in men's bodies and vice versa should address their conclusion in passionate prayer with God, sacrificing their own preferences in favor of receiving His guidance. Again, it's not our place to judge. So we need to back off of being judgmental. Judge not, lest ye yourself be judged.
Additionally, we should understand that (for example, applies in reverse) men who talk like ladies and have interests in things normally associated with women are not necessarily also into same-sex sex. Also, people who never marry but aren't sexually active shouldn't be considered to be gay. Our perceptions of others are flawed because we can only see and hear. We are not able to see into the hearts and minds of these people, certainly not to the level the Lord does, and so we who would judge need to back off. Educate, provide the Word, back off, and God will do the rest - if anything is to be done.