In this article from March of 2007, Washington Post it's suggested that because research is showing a biological basis for homosexual orientation, that means God isn't real or that He's evil and cruel. I don't see why that would be the conclusion, hasn't it been discovered that there are biological reasons for obesity? That doesn't make gluttony right. And aren't there people predisposed to violence? That doesn't make assault and murder right. Retardation has a biological "basis" as well, that doesn't make it normal and good, it means something biologically went wrong.
The biology of all these things may be different, I need to check into it more but gay people would have more credence if they quit denying that it's EVER culturally or behaviorally induced. I know it is in some cases.
Right now I personally assume a gay was molested, influenced, or genetically messed up. Planned obsolescence in each person, planned obsolescence in the human race, that's just part of life. Things go wrong. I don't necessarily believe life is a gift, not sure that it's really testing either. Usually I lean more to the idea that we are a science experiment.