One question.
How can you be 'against' something if that 'something' does not exist? 'Against' must, by reason and quite necessarily, have a referential point, i.e. 'that/he/she/it/they' which it is 'against'. Accordingly, the thing/entity/argument that atheism is 'against' is precisely: God.
Therefore, even for the atheists such as yourself (although they refuse to see it or ascertain it through spiritual or sensory modes), God exists.
The quote's probably a complete lie.
But don't let that dilute your bias.