I am against it because its just plain wrong, and that's all their is to it. Homosexuality is a sick perversion. In life you have to do what is right and proper. Having good morales is a step in the right direction. I really don't think you can look at this the way you want to or if you should even try. The way I see it, homosexuals are right there in the same category as sexual predators and other sexual criminals. Seems to me you are trying to take something that is very much wrong and rationalize it into being "ok". You can't do that if you have any humanity or decency in you. Gay marriage and homosexuality is wrong and always will be inspite of anything that supports it or tries to make it right.
Do you even know why people become gay. Its not because of genetics. Once you know that, then you will know that they can be brought back to normal, and that there is no reason why anyone would want to be that way. Being gay is wrong!