It gets down to folks that have false belief systems lacking any level of critical thinking skills and the ability to examine things around them. They "conform" to be part of the false belief system despite it being beyond irrational. That's why you can't talk to them. They aren't rational to begin with. That's why they're able to sign up for the cult / false belief system.
It's the classic example of conformance theory and the pack mentality showing that even when there is no rational basis for a belief (pick your false belief) folks will go along with it.
Humans have LONG way to go. Don't believe me? Spend a day in Texas.
Non-believers are more informed as a consequence of the way that they have critical thinking skills and make informed, objective, observations of The World around them. They're simply better thinkers with better thinking skills who make have more informed beliefs, views, and judgments. In short, they analyze, and think for themselves, removed from conformance theory / pack mentality, and have the courage to say, "No, this is nonsense."
Many folks who claim to believe, of course, don't, and only say so because they fear the cult / pack.