It’s easy to say that it would cease to exist. Prove it.
Before you erase marriage, don’t you think that you should be proving something? This childish fantasy world that you people live in is amazing.
Redefining marriage as anything, that anyone on earth wants to create and formally label as “marriage” in America, is a position that only a radical post 1960s leftist could promote.
What then would we call “marriage”, do you really think that normal people would not have to create a word for “marriage”, so that each other would know what they meant when they mentioned that their niece is getting “married”?
The burden on the courts would be massive as they untangled the legal divisions of 8 moms, 3 dads, 21 kids, and a million dollars worth of assets for a “marriage”.