The herd mentality in humans appears to override any other rationale it would appear. It’s much easier to go along with the majority, less bother than thinking for ourselves. Religion is purely an accident of birth in most cases and most people never question that, or ask why the religion of their forebears is the one true belief, when another person in another part of the world will have been born into a completely different “true faith”. Most people never alter or question the faith they were born into, ever, or the existence of god, in their entire lives...they just accept it as fact!