I picked non-believers because pessimism is natural, and can avoid big let downs. Maybe it's just my experience, but I've seen some religious people become irrationally optimistic about things that may or may not happen. With non-believers, I don't see it so much as pessimism, but as realism.

The idea that peopel will not act in a "moral" way without religion is just totally false. On a per capita basis, Atheists are very under represented in prisons whiel believers are over represented.

Believers tend to assume that due to "the fall of man" that the nature of humans is just plain evil by nature.

No human is evil truly evil. (Some exceptions) To be told that some people being different is bad, defiantly is depressing.

Believers are told & most believe that everyone else is evil or "in league with satan," or similar cheap. At least we tend to know that our actions say who we are, not what political party we are or whether we believe in a god.

I don't think being a believer or non-believer effects whether or not people are more or less pessimistic than the personality or life experiences of the person

I chose Believers, because of the number that believes in the end times, that believes the world is inherently wicked/sick/sinful, and that humanity is doomed. However, I also believe that Believers are more optimistic than non-believers because of their belief in salvation, heaven, and trust in god/s. I see non-believers as realistic, not pessimistic and not optimistic.