Pot, Kettle, Black

Atheism is pretentious in the sense of claiming to know more than it does. It claims to know what belief in God entails, and what religion, in all its infinite variety, essentially is. And atheism is muddled because it cannot decide on what grounds it ultimately objects to religion. Does it oppose it on the grounds of its alleged falsity? Or does it oppose it on the grounds of its alleged harmfulness? Both, the atheists will doubtless reply: religion is false and therefore it is harmful. But this is to make an assumption about the relationship between rationality and moral progress that does not stand up. Atheism is the belief that the demise of religion, and the rise of "rationality", will make the world a better place. Atheism therefore entails an account of history – a story of liberation from a harmful error called "religion".

Some will quibble with the above definition. Atheism is just the rejection of God, of any supernatural power, they will say, it entails no necessary belief in historical progress. This is disingenuous. The militant atheists have a moral mission: to improve the world by working towards the eradication of religion.