I find it absolutely unbelievable that you could possibly fail to understand the difference between marrying a human and an animal, but you have been quite civil throughout this discussion as everyone else has, so I will try to be as serious as possible with my answer.

I think it is quite readily appearent that we give different rights to humans and animals in this country. So, allowing an animal to enter into a legal agreement like marriage as we do humans would be most unusual and far from the next logical step from gay marriage.

And, to be honest, if that doesn't make sense, I'm just gonna leave this alone. There's just nothing more to say to that.