I just responded to some theist claiming that Hitler, Stalin, and Pol Pot were "atheists". It occurred to me, no, they were actually theists.
What is God to his followers? An unquestionable, all knowing, undebatable perfect being who is all powerful...correct?
What was Hitler to his followers? An unquestionable, all knowing, undebatable, perfect being who was all powerful.
The punishment for being skeptical of God in most mainstream religions is death (or some afterlife punishment...or inability to be "enlightened")
The punishment for being skeptical of Hitler in the Nazi regime was death.
So basically Hitler, Stalin, and Pol Pot were theists, only the gods actually existed, and they were embodied by those men. The basic problem is that whenever you have a dogma (or person) that is unquestionable, that person or dogma can get their followers to commit atrocities.
By this line of thinking, its easy to prove that theism in all forms is a mental and social disorder, because if you include self deification in the definition of what makes theism, then all wars, all genocides, and all despotic regimes were theistic in nature.
The pillars of atheism (if there are such things) are by its nature skepticism, doubt, open and honest debate, the scientific method, etc.
The pillars of theism by contrast are some central dogma and the protection of that dogma against the rigors of doubt, debate, skepticism, science, etc.