> No matter how we deal with it, Atheism is linked to individualism and may make your existence more difficult than it needs to be. By the other hand, Theism is linked to communities. There's nothing better to unite people as a shared belief.
I see what you are saying; but this idea, which I have seen expressed many times, has always perplexed me. I understand that, pragmatically speaking, having a shared belief in a supreme being may be beneficial; but one cannot just turn a belief on or off based on how beneficial it is. Even if it is true that the believers live a psychologically better, healthier and more fulfilling life (as opposed to, say, agonizing whether they will end up in hell), it is only a statement about their mental state rather than about the truth of what they believe in.