Jonestown wasn't a religious enclave it was a communist one.

He used the "cloak" of Christianity to cover his real beliefs. He was far from sane of course, but an expert manipulator. Not only of his followers but everyone he met, apparently. Like First Lady Carter for example.
I have listened to several of his sermons & broadcasts. Not all the way (some are hours long!) I'd lose what's left of my sanity, eh?
Then There's This from a Canadian band. Every song on their EP was terrific, I played the vinyl half to death! Then I contracted a CD of it, best $50 I spent, he sent be a pristine LP too!

Right: Semple and Prophet were in it for the money and/or the power trip. They didn't mean harm to their followers, and kept it "in the family" in terms of control.

Pol Pot pounded (literally, physically) his belief system into his followers, and then into the helpless citizens of Cambodia. It was as close to "true communism" we've seen thus far, I think :/
(I didn't downvote you, I gave an upvote for good & polite reply! Cheers!)