Audiences are devouring the grisly Netflix miniseries “ American Primeval ,” a work of historical fiction centered around the 1857 Mountain Meadows Massacre in which Mormon militiamen in southwestern Utah slaughtered nearly an entire wagon train of men, women and children.

Show also egregiously mischaracterizes Brigham Young and others “in ways that reinforce stereotypes that are both inaccurate and harmful,” Latter-day Saint leaders say.