This is an enjoyable film. While the director presents pure speculation as fact with no supporting evidence, that does not ultimately render this film as horrible. It is understandable, however, that many viewers will be offended since every Mormon is honestly portrayed as a fanatic.
Regardless of whether Brigham Young was involved in the incident, the Mountain Meadows Massacre still resulted in the deaths of innocent people at the hands of Mormon extremists, who are no better or worse than fundamentalist Christians and Muslims. That is where this film is relevant to today's society. As much as this film is propaganda, try to understand the message: the consequences of taking one's beliefs so far as to kill.
Regardless of whether Brigham Young was involved in the incident, the Mountain Meadows Massacre still resulted in the deaths of innocent people at the hands of Mormon extremists, who are no better or worse than fundamentalist Christians and Muslims. That is where this film is relevant to today's society. As much as this film is propaganda, try to understand the message: the consequences of taking one's beliefs so far as to kill.