KInd of judgey don't you think?! I was in a polygamous marriage and it served me (us) well, for various reasons. I would not have married him if I was to be the only wife. I've read books and seen videos by/of women in high level careers who chose the arrangement because it also suited their lifestyles. My husband and co-wife were both a little bit older than me, so it was not the cliche'-ish pulling young girls into the lifestyle.
So what do you think? The system so ingrained in this society of having mistresses that one has no obligation to (when the sh*t hits the fan)? A significant amount of men in America admit to having affairs. Some have been in extra marital relationships for years. Muslims do not respect mistresses, but they do respect co-wives.