I don't know if my hometown is messed up or what, but I grew up in Utah and never saw anything like this. My high school had I think 4 black kids, and they were awesome. Had tons of friends, were involved in choir and sports and other clubs. I'm not even sure if three of them were members (because frankly it didn't matter), but one I played a lot of ball a lot was for sure not LDS. He was always significantly better than I was on the court, and was gracious about it. I never invited him to parties or anything, but that was because he was about 3 social stratas above where I was.
Just thought I'd share an anecdote to show that the entire state of Utah does not consist of racist, bigoted individuals.
Maybe 99% is, but my little corner is not.