Except polygamy isn't the issue. Neither is the issue bestiality, pedophilia, or even sexual intercourse. Two-person same-sex marriage is the issue, and marriage can very easily come to mean "two people" instead of "man and woman".So you support granting marriage licenses to polygamists than right? After all, if they love each other, and are consenting adults...Abe Lincoln's riddle: If I call a tail a leg, then how many legs does a dog have?
Answer: Four. Just because I call a tail a leg doesn't make it a leg.
If marriage means "anything anyone wants it to mean," then, sure man&man or woman&woman is a marriage. But that's just pretending that the word doesn't mean what it has always meant.
So when the Bible talks about this man or that man having 5 wives or a 100 wives, which definition of marriage was that?
Was that one of the definitions of marriage that cannot be changed, lest we commit some sort of grievous crime of 'redefining' marriage?
If corporations are people now, should a corporate merger be called a marriage? If so, are gay businesses allowed to get married if they call it a corporate merger?