I don't think you are ever going to get to a point in a society where women have access to education and human rights that you will see any sort of movement towards accepting being in a polygamist relationship to a very large degree. I also don't see there really being any sort of real possibility of men accepting multiple wives and hell many men don't even want to marry one, so marrying two, three, four or more wives is just off the table. I really don't think that removing the social stigma would actually be enough to move people into those types relationships in this country. In fact, the way things are going marriage is a dying institution. With marriage numbers going down every year is it really legitimate to be worried about these type of marriages? I don't think so.