LOL. Do you know how the Europeans justified the colonization of the Americas in the first place? You know, it was common practise, before the revolutionary war (or a bit before that), for Spanish, French and British colonists would read out ten-page theological statements explaining papal history as a good and bad thing (respectively) to tribes they were making first contact with. The line of thinking was, as soon as a Indian understood your position on the popes, he was to throw himself on the ground and demand to be converted. If he didn’t, God gave you permission to pull out the guns and smallpox blankets.

There wouldn’t be a United States or Canada if it wasn’t for religion. No large group of sane people can do something that violates virtually every shared ethical code in human history, unless they think God is silently telling them to.