"Accepting same sex marriage does not entail accepting every form of marriage anymore than accepting different sex marriage requires accepting every form of marriage. It is possible to stop the slippery slope in a principled way. To use an analogy, just because women got the vote in 1920 (in the US) it does not follow that the right to vote must then be extended to babies, goats, or squirrels.
How does that make any sense? That's the worse argument I've seen on the matter. If two men can marry why can't three men? Can you answer that simple question? Tradition? I don't get it.
So, for example, we can forbid incestuous marriage by accepting the principle that closely related people should not marry. This would apply to same and different sex couples, so would seem to be a consistent application.
Forbidding incest for consenting adults can only be moral or biological reasons. There is no biological reason to forbid two brothers from having sex. Or brother and sister than have been fixed.
However, people can propose expansions to marriage and each would need to be argued on its own merit.
Also, arguments in favor of a type of marriage can be applied to expanding it in other ways. For example, if someone argues for same-sex marriage by arguing that an adult has the right to marry any other consenting adult, then that could be used to justify incestuous marriage. But, of course, if someone argues for different sex marriage by arguing that an adult has the right to marry any other consenting adult, then that could also be used to justify incestuous marriage. If someone argues that marriage is between a male and a female, then that could be used to argue for child marriages, compelled marriages, and also incestuous marriages-all it would require is that the people involved are a male and a female."
That was a muddied mess. The fact he is oblivious to is that marriage has been in existence since recorded history. So for 7 thousand years, at least, men have only been marrying women and sometimes more than one. That transcended all cultures, religious or not.
Contrary to the post modern activists' beliefs, there was a reason for it. It was not a accident that somehow repeated itself. That reason is outside the grasp of many today, or simply ignored, lied about or minimized. Like the birds and bees and deer and buffalo, forming male/female unions is how mammals exist. Marriage has been the time honored acknowledgment to honor that special relationship.
Saying it's no difference if a man is with a man, or woman with a woman because the unusual heterosexual couple didn't manage to procreate is the argument without merit. an infertile couple doesn't change the dynamics of the male/female union. Homosexuality is a bastardization of a relationship. A cheap imitation. If we are going to participate in the LIE that gender makes no difference then we by God have NO right to deny anybody a marriage, period, or we are hypocrites.
I'm all for the government not recognizing any marriages at all. No bennies, no nothing. You make whatever contract you want with whoever or how many you want, it's shouldn't be the government's business. And maybe never should have been.