Perhaps the fundamentalists believe that society needs a master class and a slave class - that would be consistant with Biblical teachings.
No, I'm sure they don't believe that.
Just find it hard to believe that an entire group is voluntarily setting themselves up to be the slave class.
For the most part, these are highly gullible people. They have been befuddled by a sophisticated intellectual scam, and have been conned into joining an absurd 20th century cult.