Of all the major religions, or lack thereof, the atheist's is one of the best pretenders: his foundation for all existences, as well as moral behaviors for the permanent good of mankind, begins at science but ends at himself, the Napoleon complex of both intelligence and imagination. On the other hand the anti-theist wouldn't survive without a deity beyond himself to hunt. He doesn't pretend, he simply nullifies his own position.
To be honest, one can only feel glad that so many modern iconoclasts consider Christianity to be full of exceptionally hypocritical, religious zealots - it's biblically accurate and a prophecy fulfilled. The old smoke screen is one of Satan's favorite tricks. He conceals the authentic. He has a persistent strategy of targeting those who remind him of Christianity because he fears those who remind him of Christ.