This part is not true. Mainline Mormons hate these groups we are their most bitter enemies. They bring a bad name to us. Any member of the church that espouses such doctrine is ex-communicated. No known member of the church practices this out-dated practice if they try they are immediately ex-communicated and never let back into the church. Murders are treated better by the church than these people.
Much of this article about these cult members is true. My parents live just a few miles from Hilsdale. They often see these people in old-fasion clothing picking up their wives. They live off the state by only marying one woman legally the others are on welfare often in separate small houses (avoids the law). Little can be done as they stick together and will not testify against each other or allow anyone else to live in their private towns. Furthermore technically they are doing nothing different than mainstream America. Adultry is not ill-legal in any state and that is all they technically do. Adultry is what they were convicted of 50 years ago. It cost Arizona and Utah millions supporting all of these children. First they let the women out then the men to take care of their famlies. I doubt they will ever be convicted again in any number. Although it is likely some will be for child abuse.
I do not believe the part about the Arms Buildup. I seriously doubt they have any more fire-arms than the average people in this rattlesnake infested area.