My arguement with "gayness" is that it can't be natural because we are all instictually programmed with a biological clock, us and our dogs and bears and monkeys and fish. Natures way of keeping the species going. Gay couples cannot procreate so how could they naturally be wired to desire the partnership of someone of the same gender? Now... that said. There are people born everyday with "flawed" mental wiring, body chemistry, physical ailments. So, whose to say these people, while they were being developed in the womb, were or weren't bestowed male parts and female minds or chemistry and vice versa? I'm pretty sure I recall the discovery of a definite gene being associated with it so perhaps it is more natural than people would like to accept.
There is supposed to be seperation of church and state so "immorality" in the churches eyes shouldn't have anything to do with it. Then again, marriage is a religious ceremony. A union of "man and wife" before God. Sooooooooo why as to choose to kick the bees nest, I don't know.
I don't put together hetero rallies and parades but sometimes I'd like to. I get tired of hearing about and seeing the gay demonstrations. It's like being in the French Quarter during Mardi Gras. Pride is one thing, shoving something down peoples throat is another. If someone expects to be tolerated, they should tolerable. Pedro on the old school MTV's Real World for example. That dude wouldn't shut up about how the everyone hates him because he's gay. Maybe if he would have shut up and just acted like a person instead of feeling sorry for himself and shoving it down everyones throat he would have been accepted for himself. I know a few gay people who aren't anything like that, and they are otherwise "normal" people who I can't see any reason not to be treated as equals on a personal, financial, and social level.