We agree to disagree then. I will not draw my faith into the argument because that's a copout.
This pretty much dismisses most if not all of your arguments.
What marriage might be in a theoretical discussion is identical to arguing what man might be in a theoretical discussion: no armies, no wars, no police, no weapons.
Unfortunately, I live and engage in reasoned discussion only in the real world.
Just remember who is the Prince of the "Real World"
Marriage is all about faith. Why would you speak about marriage and not speake about faith?