Burz, why would you even ask your children who they want to marry when they grow up? Would you love them any less if they were homosexual? And no, I don't feel that the liberal churches should be thrown into the group of bigots...because they aren't bigots. And I don't believe Christians have done much for society. The first positive changes, in western europe, were conducted by Secular/deist/atheist/agnostic philosophers such as Voltaire, Diderot, etc. 90% plus of the highest orders of science in America and Britain are non-religious. And I don't see how it's a sin. I honestly don't. If you can't make the logical choice and view that as [poo], I pity you. Religion was just made to order society in a relatively primitive age
As to the "lol world population will diez" argument. There are six billion people on this Earth. Growth rate is still astronomically high in some areas of the world. Also, as the rest of the world advances and their standards of living and they live longer, the population will still increase. Even if the entire world legalized and supported same sex marriage it would not lead to a negative rate of change for the population of the human species.
As to the "slippery-slope" argument of "Well, if we legalize it everyone will just go gay! Where will it stop? Will you marry a piece of pie next?" Have you ever eaten a hamburger? Yes? Great! Let's go eat some human ribs now since it's all just meat! Viewed in that light, isn't that just a stupid argument?
As to the "lol gawd dun want" argument. If he did not want this, he would not have allowed it. Some will argue "lawl free thought." I want to fly ten thousand feet in the air for an hour without any aid from machines of any sort. Where's my freedom now? If you believe in God, obviously he didn't want me to fly without mechanical aid so he took that choice away from me.
P.S. Why is it that the farther north on most continents you go on the more liberal/secular it gets (with the exception of Africa and Asia is a bit of a mess in the fact that Russia of all places is more liberal than most countries on that continent perhaps besides India)
P.S.S. If Thomas Jefferson lived today I feel he would be absolutely appalled at the enormous political clout that churches have in today's America. In fact he said "The day will come when the mystical generation of Jesus, by the Supreme Being as his father, in the womb of a virgin, will be classed with the fable of the generation of Minerva in the brain of Jupiter." He had a lot of quotes about religion but I've always felt this was the best.