Sorry to burst your bubble JTFEnthusiast... But...
If there is no moral reason for marriage, and it only serves as a legal document concerning a perverse sexual arrangement, then what is the purpose? Why do gays need to call their relationship marriage? Is there any other reason than to seek divine approval of this relationship? This is the reason the Torah proscribes marriage, it is the fufillment of the contract between a man and a woman which makes sexual contact OK, and it also establishes certain legal and emotional responsiblity on the participants of the marriage.
Why does a relationship which can have no children, which is against the mandates of G-d, according to the Torah which was given to the Jewish people at the Mountain, why does this relationship need to call itself in the name of marriage? I have been all supportive of the idea of civil unions, which are legal ways of establishing a relationship...
By why do gays who don't have this divine need to procreate, because they decided to follow their desires instead of the word of G-d? What in heavens name do they think? Marriage has been and should be a scared union, not some document which legalizes sodomy...
If there is no law preventing this kind of desecration then it is 100% logical that all laws which regulate morality can be questioned. Why not have sex with an animal? There are probrobly some very nice bestial people, who hold good jobs, and donate money and blood to others. There are probrobly some very nice pedophiles also, who look like your neighbors and shop in your markets. They all are people too, and why should there be laws which prevent them from "Life, Liberty, and the pursuit of their happiness"?
I am not saying that gays also are bestial pedophiles... But if there is no moral laws, as I said without Torah there are no morals, then anything goes. This includes murder, idolatry, and sexual immorality... The big three cardinal sins...