Actually, I believe that Mormons have always been less racist than members of many other Christian denominations. For instance, there has never been a period of time in the Church's history when we did not have integrated congregations (although there were admittedly not many Black members of the Church prior to 1978, at least not in the U.S.) Also, growing up in the Church, I can never recall a single instance of being taught that they were "the spawn of Satan" or any other such nonsense. While it's true that the Church's policy prohibiting Black men to hold the priesthood could accurately be described as racist, Mormons have never been encouraged to harm or harrass African-Americans, but always to treat them respectfully in their personal interactions. You won't find a lot of vitriolic talk coming from Mormons directed at Blacks, even when th ban was in place. They were clearly discriminated against in terms of their roles as members of the Church, but when you say they were "extremely racist," I can't help but think of the kind of racism that involves violence, etc. Maybe that's not what you had in mind, but that's how it came across to me.