As far as I know, the Bible does'nt prohibit it. On the contrary some of the greatest people in the Book regularly practiced it. The way I see it, if you can support your spawn, you should be allowed to have more than one marital partner. So long as you don't hitch your wagon to some underage girl and so long as it is between consenting adults, it should be legalized and accepted. If anything, polygamy as a societal norm is more viable than homosexuality,which by the way, seems to have wider acceptance. I say, let them marry more than one those who want to. BTW, where did the law banning polygamy in most western countries come from anyway? Your thoughts please and cheers!