I beg your pardon? What's that doing on a blog by a confessed Pagan agnostic? Don't worry, it's very brief, just a bit of FYI.
I can read. This stuff is not difficult. Teach an alien from another planet to read English and he could do this. I can quote Socrates too. I can also look things up online.
Let's take this in steps.
1. The Bible is not my source of morality, but it is for a lot of people, so if we are ever to understand why there is an anti-gay attitude we need to look there.
2. Christians consider the NT to be more important than the OT, and that Jesus is the key there, so that's where we start.
3. Christians trust the writers of the NT to have quoted Jesus correctly. So when we say "Jesus said" we are assuming this.
4. What did Jesus say about homosexuality? Nothing. Not a thing.
So, this is an important step. Ask yourself, if Jesus is the most important "voice" in Christianity, and he didn't mention this, why is it such a big deal for Christians?
Well, first they come at this from two other angles. What Paul said, and what Jesus DID refer to that's connected.
They were both down on adultery and fornication, among other things.
(1 Corinthians 6:9-11)
I think I can agree with him on those things being bad.