The big deal is that gawd (if you take into account gawd is the mindset of primitive desert peddlers from 2000 years ago) thinks its wrong, and thats what matters.
A guy once told me, "The only reason you believe there's nothing wrong with homosexuality is because you don't believe in God. There's a shitload of questions one can then ask about this person's view. For one, is the only reason he believes there is something wrong with it is because he believes in God? I don't presume the dynamics are that simple of course, but he does think the dynamics are that simple for me. Does he take into account any of his own feelings, or has he considered not worrying about what others do? No. On the surface, it's just what God tells him. That's what he's says he goes by.
Of course, this is bullshit. God tells him whatever he defines what God is saying, which of course comes from inside his brain, not God's. So he's got his personal dynamic at work whether he stops to see what it is or not. He's also armed with a load of scientific information. Apparently, scientists agree that homosexuality is not normal. I have no idea what his sources were for that, but clearly, there's more than just God involved in his bias.
Now this is not some internet troll. This is a real guy who boasts an IQ of 190. I'm not making this up. He said he was told he has a 190 IQ, and he knows it's true because he can tell he's smarter than most people. He's quite sincere. Now obviously, he has a low functioning intellectual ability, which becomes apparent during any short conversation with him. But he believes he knows the score, and you don't. And he believes it's up to society to save gays from themselves. He's just doing his part by sharing is vast store of knowledge.