The only logical reason I can come up with for being against gay marriage, and to think that being gay is in some sort of way wrong, is that, we all are born of a mother and a father.
I don't think that's a good argument. Being gay appears to be quite natural (part of nature). It occurs in all human societies, AFAIK. It is said to occur in other species too.
Being born gay is not a proven thing yet. This would greatly affect how I feel about this.
My opinion is that people are born neither gay nor straight. They are born with complex psychological drives, and must discover for themselves ways to channel these drives.
Maybe some people are genetically predisposed toward being more likely to satisfy their drives in a homosexual manner, while others are more likely to satisfy them in a heterosexual manner. Or maybe it is all dependent on our experiences and our early encounters with other people.
People have asked me, did I choose to be straight. I say yes. Because I was raised to think that being gay is ok.
Did you choose to speak English? I suspect that you were raised to think that having other native languages was okay, yet your native language is English. Does that mean it was a choice?
IMO native language is not a choice. We are compelled by circumstances. Yet our native language is not genetic. So it seems possible to me, that gay/straight is not a choice but is compelled by circumstances, even though it is probably not genetic.
Now from a religous stand point, there is no way you could ever say that Jesus thinks its ok. Even though people have tried in here, I will never be convinced that Jesus thinks its ok. It's one man, one woman. (riVeRraT then quotes from Matthew 19:4-6)
Jesus wasn't even talking about homosexuality there. He was talking about divorce.
Can you explain why some Christians take divorce in their stride, and many even seek divorce themselves. Yet they are completely hostile to homosexuals. To me, this seems like a serious inconsistency.