I don't understand why being gay is a problem, I'll be honest. But I don't understand why being lustful or envious is a sin. I couldn't begin to understand the trinity. But what do I know is that God tells us being gay is wrong, being envious is wrong, being lustful is wrong and to believe in the trinity. Maybe it sounds like I'm a blind follower but God wants us to have faith.
This is what happens when you get your morals from a crazy book instead of discovering them with logic and reason.
It may seem crazy to you but the reason it has so much appeal to so many people is because so much of it lines up so perfectly it's hard to believe some average Joes wrote it.
No, I'm not turning this into a religous debate. I'm complaining about your justification.
You say being gay is a problem. "The book told me to say that" isn't an explanation. The magic book also says a lot of other things you don't follow, you're just using it to justify your homophobia and not have to explain it.
Maybe if you thought for yourself, you'd change your mind, maybe you wouldn't. But at least then you'd have a reason instead of it being simply because you are brainwashed.