I'd actually heard the case for the Mormons as a potential American Taiping in a Matt Christman vlog, based on the predicates that A). the timeline of the two roughly syncs up and B). their ability to flee the country is prevented, since without the option to flee to Mexico tensions would continue to build if they weren't all, you know, massacred. If the US government in the upper Northwest was corrupt and incompetent and Mexico/the tribes prevented westward expansion it's reasonable they could rise to fill the gap, since (like the Taiping) the Mormons would provide an alternative social safety net.The Mormons seem to be people's pick. I could see a number of different groups emerging to rebel, however.