You wager god is real and Joe Smith found gold tablets with writings of a deity, so your judgement is highly suspect.<quoted text>
You asked Q about the slippery slope. Polygyny would most likely be next, followed by incest, and I would wager, it will eventually come to human and animal. And in maybe 200 years people will be considered bigots for not wanting incest and beastiality to occur.
I do not wager beastiality will be socially acceptable even in two hundred years. And are you really trying to keep homosexuals from marrying due to fears of what will occur two hundred years in the future?
You can try to justify your bigotry if you wish, it is what all bigots do.
You are on the wrong side of equality, and as long as you are, I will protest your beliefs. I will inform all of how the god you worship is but a myth. Atheism is on the rise, and this is one large reason why.