For anyone that’s interested in a deep dive into what kind of shit was going on here, John Dehlin has covered this pretty extensively on his Mormon Stories podcast. Episodes 1805, 1807, 1808, 1809 (removed due to threat of a lawsuit for defamation; you’d have to find an archived copy. Adam Steed is a difficult interviewee in many ways, unless you are already deeply, intimately aware of Mormonism; his thoughts are often very jumbled and he has a hard time expressing things in a linear fashion), 1817, 1817, 1825 (tangentially; it’s about “Visions of Glory”), 1826, 1844, 1865, 1869, and 1873. It’s also tangentially related the the Lori Vallow and Chad Daybell murder cases, in that the beliefs of Jodi Hildebrant and Ruby Franke were both heavily influenced by the same apocalyptic book, “Visions of Glory”.
Keep in mind that the episodes I just listed comprise roughly around 30 hours of listening. About half of them are long-form interviews. Unless you have an an interest in cults, religious indoctrination, apocalyptic beliefs, this is probably not going to be your thing. And unless you were raised Mormon–or have listened to the other 5400 hours or so of podcasts that John Dehlin has done–it’s probably going to be a little hard to follow what’s going on.
A very, very short version is that, while Franke was always borderline abusive as a mom (and that’s pretty par for the course in Mormon families, TBH), Hildebrandt is an incredibly charismatic, persuasive psychopath that used a version of Mormon theology to induce her to be far, far worse than she would have otherwise been. If Hildebrandt had been male–because you must be male to have real power in the Mormon church–she almost certainly would have ended up leading a fundamentalist cult.
Franke 100% would have been doing this even without being a YouTuber. What she was doing on 8 Passengers is not all that extreme in Mormon circles, and I don’t mean just the deeply conservative ones. Yes, she went a little farther than most Mormons would be comfortable with, but the core ideas? They entirely understand where she was coming from. The commonly cited example is her refusing to bring lunch to a child (6yo?) that forgot it, saying that it’s ‘personal responsibility’; many Mormons would argue that it’s a little too young to expect a 6yo to be fully responsible like that, but if a 10yo child forgot? Or an 8yo? No problem.