Jeez, what a train wreck this thread is . . . I'm really glad I was away for two solid days at my recording internship and missed most of the nonsense. Just skimming through it now was bad enough.
For what it's worth, God never said that being gay was a sin. A bunch of superstitious idiots living thousands of years ago thought that's what was said, and put it down as if it was genuine. Then a great number of people were raised to believe it, completely failing to see that they'd incorporated hate and fear into a philosophy that was meant to promote loving your neighbour above all.
If you need proof of concept, just watch Life of Brian.