Like most people I had a bias against gays in years past (I am a senior) and I still am opposed to gay marriage. But I have changed my general attitude because I gradually came to the conclusion that some people are simply gay (or lesbian). Quite possibly it's a matter of genetics. Some research supports that. In other cases perhaps environment played a role.
For example, I know of a young man who was arrested, wemt to jail where he was the frequent object of homosexual rape, and when he was released he was gay. There is evidence that many heterosexuals in prison practice homosexuality because no females are present. In a few cultures homosexuality is more-or-less acceptable until marriage. I believe that people like McGreevy (sp?), former governor of NJ, and Haggard, evangelical minister, may be bisexual. I recall someone who was kicked out of a boys prep school years ago for engaging in homosexual activity but went on to have a wonderful marriage and six children.
In other words, it's all very complicated, which over the years has made me more tolerant of it. I suspect that some of the priests who exploited altar boys may have made good husbands. Their sex drive needed an outlet and altar boys were most accessible. True, more of them were likely gays.
Now, what does trouble me are gays who push themselves on youth, as some priests and many others have done over the years. I recall hitchhiking as a teenager and being picked up by a driver who tried hard to seduce me. I have more tolerance for gays who are in adult, mature relationships and don't flaunt their sex publicly. Actually, I feel more sympathy for them than hostility because as a married man myself I am well aware that they usually miss out on the stability, the dignity, the children and the other benefits of normal family life.
True, the Bible does condemns homosexuality. But two things to bear in mind. (1) The Bible condemns lots of things - reread Ex. 21, Lev. 20, and Deut. 22-23, for example. Should we have slavery, stone to death those caught in adultery, kill teenagers who rebel against their parents, not allow those suffering from certain disabilities into our churches, etc.? (2) Christ clearly places love above everything else. Those of us who know gays and lesbians know that they can be very worthy of God's love and our love. I even have come to accept civil unions. But why do militant gays insist upon redefining the word marriage which has meant male and female forever?
But God bless the whole world. No exceptions.