Careful. I’ve been advocating that line of thought for over a year now here on FR and at best I get confused “WTF’s” at worst I get out and out defense of the state having the power to grant you permission to marry.
It's incongruous for conservatives to affirm that family life, of which marriage is a central part, is holy/sacred/private...
...and at the same time say that marriage should be licensed by The State, giving Big Government the power to regulate, control, manipulate, and rewrite it.