I think this is a classic case where balance is needed.
There isn't a single verse in Scripture that says it's a sin to be gay. Being gay is arguably little more than having a set of desires that are different from the majority and those desires, in and of themselves, are not sinful - aside from the object of the desire they are fundamentally no different to my desires for women other than my wife.
What Scripture does prohibit is homosexual activity - "you shall not lie with a man as one lies with a woman" for example. And it's not a huge leap of reasoning to figure that what Jesus said about looking upon a woman with lust would apply equally to a man looking upon another man with lust. But there's a big difference between noticing someone and finding them attractive, and lusting after them.
Jesus said to the woman caught in adultery - "neither do I condemn you, go and sin no more". The two halves come together perfectly, and so often these days we drop whichever half suits our leanings. Some focus on the "neither do I condemn you" as if to say that anything is good, there's no more condemnation and you're fine. That misses the point of "go and sin no more" - the message is clear - stop doing it. Others focus on the "go and sin no more" as if the best way to get people into the kingdom is to pile condemnation upon them until they stop sinning. This also misses the point of "neither do I condemn you".
So many people seem to think that homosexuality is some kind of special sin in a league all on its own. You know, I might commit the odd transgression but nothing too serious.... certainly nothing like those nasty icky gay people who do, well, you know, that. But, as Jesus said, "let him without sin cast the first stone". I suspect if the person facing stoning today were a homosexual and the church were faced with Jesus' challenge, most of us would probably mumble and mutter and head home.
