Adultery is no longer a crime in most countries but polygamy still is? Not if you don't want to be labeled Islamophobic. Polygyny is no longer prosecuted in several Western countries unless there is evidence of underage marriage or abuse of women or children (and perhaps abuse of federal "entitlement" funds). How much longer will you pretend that you never have and never will commit adultery, will never again view porn, or would never be nude in public?