In a society that had been so fundamentally shaped by theistic religions, it is practically impossible for someone to be cognisant of gods yet remain completely uninfluenced by their atheism. IMO this is why many atheists desire to recast atheism as literally nothing, rather than an epistemic position taken in response to theism.
You are taking a different turn with this. What if you for some reason don't hear notes in punk music? You won't go to punk concerts except if your buddies go or your whole village goes unless you can come up with a reason not to go. How will it shape you? You probably won't become a fan of the music unless you like listening to something that your ears can't make out.
Based on the evidence from our social evolution, would you agree that belief in gods (broadly defined) is at least as 'natural' as not believing in gods?
It's natural that cultures form concepts for things they don't understand and create "natural" gods from that. Then there are also the people who've personally experienced God, who will talk about it so it will influence people who don't really have that experience but codify some of it. So it's natural that gods arise in societies. Even when I was an atheist, I understood that various spiritual or mystical experiences could be construed as visits by gods by people who believed in them. What I didn't know was that there was an altogether different experience of God... neither would I have believed in it if I didn't experience it.
How would someone who rejected the role of the Pagan gods of their society be viewed? I don't know much about this, but I guess is that many people would find this consequential. Pagan Greeks created the term after all.
Well our Norse neighbors respected people who believed in their own arms instead of the gods. I expect such approval to have been the same here also. The gods, after all, didn't decide much. They were considered to care more about heroes or things under their domain. If you wanted kids, you would get drunk in the name of a god and go into the wheat field and someone with the same wish would possibly meet you there. Bears were all gods, more respected than the rest since you could meet them alone, and when they were hunted and killed, it was a heroes act and a cause for a special celebration. There was a god that caused knocking or rapping sounds on wood where you couldn't find the culprit, you had to know it was done by this god.
My folk believed that all people went to a shadowy world of forgetfulness after death. A neighboring tribe believed that there was a heaven of sorts just like this world, where all the reindeer were huge where they would all go to.
There are still religions alive that are related to my ancestors' religion and even some efforts to decode the beliefs. Some even formed a religion that was accepted as a religion around the bear just like the old days.
Interestingly the Soviets participated in this film of a traditional religious myth here along with producers from my country, the music isn't related to the film...
More consequentially, the rejection of the dominant monotheist paradigm was, by extension, a rejection of the foundations on which contemporary morality and other aspects of society were built. This was certainly consequential for the Marxists and factions within the French Revolution. Someone like Robespierre was conscious of this and promoted a form of Deism to counteract the even more radical atheist factions.
You like to talk about the anti-theists who were historically called atheists too. Yes, those were different times. As you remember from earlier debates also, the Marxists had materialist dialectic which is a god concept.
And are you saying Western contemporary morality is superior to say that of China or Japan?
Secular Humanists had to borrow a concept of Humanity from the monotheists in order to ground their moral code.
Much of this was grounded in Roman law. I don't know how an individual who realizes they don't believe in gods is supposed to think about these things at that moment.
Humans need to construct myths/narratives to justify their beliefs and values and gods have proved particularly good foundation stones. This legacy can't really be ignored.
You have taken this discussion on a far off tangent from how consequential something is to an individual to a discussion of theories of humanity. You seem convinced that every atheist is hiding an anti-theist in their head who will reject anything religion has done, which is of course not the case.