>>/26588/
Mormons are heavily into polygamy though, and they're not even Christians. It's basically a giant fanfiction religion with Joseph Smith (a freemason who literally tried to pass an Egyptian pagan book as the "Book of Abraham"), even Islam is more legitimate than Mormonism.
Maybe the freemasons pushed it so that they could replace Protestants in the American west, which is why the majority of it is either Catholic or Mormon.