> Apart from the obvious reason why it can’t work (jealousy), one problem is that it’s not good for society at large. These groups are probably low fertility fo

> Apart from the obvious reason why it can’t work (jealousy), one problem is that it’s not good for society at large. These groups are probably low fertility for one, and they take partners away from others. I don't follow, since the group is not a large cohort of society by any means, how can it affect society "at large"? > These groups are probably low fertility for one, and they take partners away from others. It might be, it might be not, that's your assumption. "Take" partners away from others in what sense? Their partners might have other partners as well, it's polyamorous after all, I don't understand your reasoning at all.