Atheist no-shit Pat Condell (who in my opinion kicks ass), talked in one of his recent videos about polygamy. I am personally against polygamy, as it’s a strip of self-dignity and a de-powering of women. It’s as bad as genital mutilation as far as I am concerned, it’s just that this is emotional mutilation. I would never, never, be able to be the No2, or the No3, or even the No1. I have to be the only one. Even if our time together is finite.
Having said that, I recognize that humans don’t necessarily mate for life. But this doesn’t give men the right to be married to 2+ women at the same time. No one can win out of such a “relationship”.
Polygamy can only be useful in the case where there would be many more women than men on the planet (like, 3x or more), in which case Darwin would have worked its magic and polygamy would make more (genetic) sense. Either that, or simply, the marriage institution would be collapsed in that case.
