It turns out that when you actually quantify racism, Mormons are tied at #4 (with North Dakota) behind only Alabama (#1), Mississippi (#2), and Georgia (#3). Some researchers geo-located and tallied racist tweets in light of the election and Mormon-dense Utah didn’t fare so well. You can see the map here.
Granted, this is a specific situation – a white, Mormon candidate for president was clobbered by a mixed race though African American identifying candidate. Mormon hopes were dashed, and the latent racism came out in buckets. Time to rethink the idea that Mormons aren’t particularly racist.