Cults normally start with a mentally ill person who wholeheartedly believes their own bullshit, that attracts people who may be lost and vulnerable, who then are brainwashed.
Very difficult to stop.
Warren Jeffs still runs things from behind bars. His followers were/are(?) allowed to visit him to listen to and record his bullshit!
Fuck knows why this cults focus was on this man, but I don't think the outcome for him would have been good had they managed to kidnap him. Although tbh their plan was nuts.