This isn’t even polygamy. I suppose you could call it group marriage. In polygamy each marriage is between two people, the man and woman. The women aren’t married to each other.
Yeah, but in polygamy men are men and women are women, no confusion. Although it’s not for most people, regardless of how legal/illegal it is. In a world of no-fault divorce, it’s a bad liability.
You can call it three-handed poker if you like, but every time you see something like this, it becomes more accepted.