Pretty much any sexual combination, once you’ve swept away the limitation of between a man and a woman, would have to,be permitted.
I’ve had my eye on that cute collie down the street.
Redefining marriage between a man and woman is supporting bestiality, supporting marriage between an adult and 8 year old child. Polygamy and any other behavior man could possibly imagine
The arrogance, the ignorance, the selfishness of anyone believing they can redefine marriage is as others have said, is the depth of depravity.