When believing false things is comforting

[Belacqua]

Please detail the ideology of atheism.

Atheists, like theists, may subscribe to a wide variety of ideologies. 

Any human being who says "I think the world should be this instead of that way" has an ideology, including atheists.

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Theism is an outgrowth of the privileging of contingent expediency over discovery of facts, and depends on wide spread lack of fundamental honesty to survive.

This is your own belief, based on such an oversimplification as to be false. You believe this false thing -- perhaps because it is comforting to you.