Since atheism is a specialised critical position on theism, the goal (such as it is) would be to render itself ultimately redundant. Theism goes away, atheism becomes unnecessary. I'd much rather have a world in which rational scepticism and critical thinking were default factory settings and valued as virtues, than one 'faction' responding to the fairytales of the opposing one.
At the age of five, Skagra decided emphatically that God did not exist. This revelation tends to make most people in the universe who have it react in one of two ways - with relief or with despair. Only Skagra responded to it by thinking, 'Wait a second. That means there's a situation vacant.'