Not sure how genes can affect your psychology, as genes only affect your biological makeup & not the way you think? Otherwise there would be no atheists, as most athiests, if not all of them, had ancestors, if not our parents, that believed in a higher being?
Well, all the Europeans who started being skeptical of the existence of
witchesin the 18th century were probably kids of parents who believed in witches too!
Its also a matter of changing moral zeitgeist, but there might've been a skeptic element in our genetic make up, which would've caused our ancestors to question religious dogma, had other circumstances allowed.
But that is partly my point, there must be something else. We can show many examples of people with all these criteria and be a strong Muslim, and have none of them and still be an atheist.
Many people are pre disposed to behave or believe in a particular way, there're no easy answers for this. People with these criteria are significantly more likely to be skeptics, just like Turkey has more skeptics than Saudi & Bangladesh, yet there's no surefire answer to why some are skeptics & some aren't. Studies correlate IQ & higher education to more skepticism, yet some devout believers are very intelligent & erudite.
Why are some people politically left, centre or right? Why do some people have such a strong need to be a high achiever, while others are more laidback?
Very difficult to say
exactly why.