Some people say the Bible supports homosexuality. Some say it does not. The following two videos are by Dr. Wesley Hill. He says he's gay. He also claims to be a Christian. And he also claims to be celibate. Some say that's not possible. You be the judge. (I've put the shorter video first.)
But why even discuss these thing if there are no harmful effects to those who practice homosexuality? Did you notice the assumption in that question? On the following MP3 Thomas Schmidt looks at peer reviewed journals to see whether there are harmful effects and if so, what are they? See here.