I think that's the wrong argument to make. There were a lot of things said in the Old Testament that aren't considered by most Christians to be applicable to th

I think that's the wrong argument to make. There were a lot of things said in the Old Testament that aren't considered by most Christians to be applicable to them. The "Old Covenant" was, as the Jewish maintain today, between God and the Jews. For most Christians (more specifically, Catholics and several other groups), the laws in the Old Testament ceased to be valid when Jesus proclaimed the way into Heaven. That said, it is true that the bible doesn't disapprove of polygamy. The Old Testament is filled with examples of God condoning it (Lamech, Esau, Jacob, Gideon, Solomon... The list of men with multiple wives goes on and on - God even gave Saul's wives to David), and the New Testament has a few "mentions", so to speak: Paul's letter to the Corinthians, which explicitly says it's his opinion and not law, Ephesians, and a few others that are suggestive of opinion and not law. But honestly, appealing to biblical authority is fraught with oppositions that focus on the numerous inconsistencies in the bible. I believe that polygamy is a personal and/or moral belief, and while I'm personally an atheist, and personally do not have an interest or stake in debating the morality or religious support of it, I recognize that there are potential and actual inconsistencies with how rights and responsibilities are handled with respect to polygamists, and hope they're able to find the path to equality. Selfless love knows no bounds, frankly. It's the selfish ones that need to find humility before they find peace.