I just finished a great book on him called "New Deal of Raw Deal" and it pulls off the cover of the fake history we have been taught about him. It covers what you correctly stated and much more. He was a king if there ever was one. He was a Communist when you really look at his actions.
We probably agree on a lot of issues but I think you got this wrong. The anologies doesn't align. Marriage is different in some major ways and I think they are significant enough that you would be better off using another analogy - like the feeding of illegals with our tax dollars or the Welfare state in general. Or even the size of government. The point behind this seems a little ambigious. It's definitly a great "mind puzzle" though as I like to look at arguments for and against all sides and I argue against abortion and for marriage. I try to look at my own arguments and if they have weaknesses in them and where. This one I'm admittantly wrestling with the arguments within and what you are arguing for - or against.