I've always said, "I don't believe in atheists." My reason being if you truly did not believe you would not even feel the need to rail against something. It would be just foolishness. Let them. You have something to overcome, that proves to the world that even you believe in God.
I don't mean to be offensive, but that really is utter nonsense. I wouldn't feel the need to put the views I do if it weren't for believers regularly trying to make me think otherwise. I've had some knocking on my door only a couple of hours ago (don't they realise how offensive it is to turn up uninvited on someones doorstep and try to tell them their world view is wrong, and they're evil without their teachings? I'm going to ask for their home address next time so I can turn up as and when it suits me for some debate).
It wasn't too long ago that belief was the norm (on the surface anyway). I was brought up in children's homes, and in one was made to attend church on sundays ( until I rebelled and got the rules changed). The only reason I felt the need to deny God is that the matter was, and is, pushed on me, with the claim that without this I'm wicked. Still today his most devout followers say that without him we are evil.
That is what I "rail" against, people and their tendancy to judge others by notions they hold.