Is atheism self-contradictory ?

[Aoi Magi]

@OP
Atheism is simply a lack of belief in god, how one arrives to that point is irrelevant, and thus it cannot be self-contradictory.

A perfect being by definition would be capable of perfect creation, and a perfect creation should be capable of perfect functioning without guidance.

Regarding your claim to the quaran being a perfect book, I can claim that the call of cthulhu is a much better book, because here perfection is subjective and without definition.

Regarding muhammad, pedophilia aside, he was a warlord and having people follow you under the threat of death doesn't require divine wisdom.