You have presented the atheist statement as the opposite of the Christian response, but I propose that you have not worded the atheist reply correctly. You have not given the atheist a reason for rejecting belief in God. That is unfair as all atheists have reasons they do not believe. The exact opposite of your theist response should read: "The atheist can say, 'I know God does not exist because he has never revealed himself to me.' "
Here is a fact, I suspect I am an atheist because I have never had any revelation that God exists. It does not mean I know him not to exist (as in your reworded atheist response), but it does mean that I have been given no reason to think a deity exists.
This is a totally erroneous belief on your part. As an atheist I have many reasons for not believing in God.
In The God Delusion (I gave the quote above) Dawkins states his belief: "‘I cannot know for certain but I think God is very improbable, and I live my life on the assumption that he is not there.’ " Elsewhere Dawkins has stated that he 99.9% sure that God does not exist. How you get from that, that he is an agnostic, I can't understand. Your claim flies in the face of what he himself has written. If it is me you don't trust then check out page 51 of The God Delusion for yourself.
Absolutely false! Jda, have you read any books by Richard Dawkins, Christopher Hitchens, Sam Harris, Dan Dennett, Michael Shermer, Dan Barker, or some other atheist author I have not named?