this is a nonsense argument pushed by the ABA.
It is by design, intended to remove children out of marriage and make them a separate legal issue and make probate rules default to the state inheriting all.
WE USED TO HAVE a non state recording system. It was full of fraud and abandonment. It does not work.
This is a junk argument for establishment republicans to find cover from those who do not support sexual fetish based “marriage”.
All voluntary makes anything goes. Marry your cat, all your cats, your refrigerator, one two three fifty people and things. Marry your real estate or pot plant or personal property. There is no rule against it.
Good thing we put it into the hands of an unfailingly honest and conscientious organization like the government, huh?