Now, does the Bible think homosexuality is a sin? Sure it does.
I think the Bible is such a tangle of contradictions that to say it "thinks" any one thing is folly.
To think something is a sin and to love doing it is truly depraved and in this it also confirms the worst opinions of those who are homophobes.
Seems pretty easy to reconcile to me. Follow along:
1) I accept that some people have need for a category of actions they label "sinful".
2) To them, homosexuality falls into that category.
3) There is some overlap between what they would consider "sinful" and what I would call "wrong", but that overlap is not complete.
4) Homosexuality is not in that overlap.
5) Therefore I can accept that homosexuality is "sinful" (a category which means nothing to me) while not thinking it morally wrong, and enjoy it as I will.