Interesting food for thought. Feels like a catch 22 that they need more human interaction to help with their ideologies, but their ideologies make people not want to be around them (except for other people in the cult). It's also vexing that they can know a Muslim or an undocumented immigrant, and have that "oh no, they're one of the good ones" logic and still demonize the rest of the people from those groups. I wonder how many people they need to know from an out-group before they stop demonizing the whole group.
That book sounds interesting, I'm adding it to my list at the library. Thanks for the recommendation and also all the thoughtful advice!