Earlier quoted context omitted.
What? Being theist or atheist is not a moral issue, it's a philosophical issue about the nature of the universe. The notion that atheists are less moral than theists is a common misconception.
I would argue it is more moral to be atheistic than to believe in some god.
EDIT: Hacker News is not allowing me to reply to you, so I'll ask my question here: If a group of atheist people shared a set of contradictory beliefs, requiring vile and immoral actions, would that make atheism immoral?