When an atheist, or an anti-theist, speaks in defence of his/her belief my faith in Jesus Christ strengthens that much more. What is extremely sobering about atheism is the complete lack of substance in any degree and the praise of one's self. If there is no God why live? Another way of saying it; what is there to live for? Atheism, or anti-theism, is the desire to escape accountability of one's own actions. If there is no God to whom do I answer to? Says the atheist. Little do they realize that's it absolute freedom in Christ vs. absolute oppression, as God is so often portrayed.
I also firmly believe that the person who does not believe in God, and makes that fact known, is closer to Christ then they realize. Think about it. If you have ever seen a fight or have had the unfortunate time of being in one, you know that you must be close to your enemy to fight them. The person who tells everyone that they hate God or that God does not exist must, in figurative terms of course, sit in the lap of God in order to slap Him in the face. This brings up yet another issue.
In the book, "God is not great; How religion poisons everything" the author Christopher Hitchens writes, "I hate God and God hates me." I find this interesting. How can you hate something, someone, or even the idea of something if you don't believe that that "something" even exists? And how can that non-existent something hate you if that something does not exist? See, I think atheist's shouldn't have a single thing to say about God. How can you if you don't believe in it? Not just that you don't believe in it but that you don't think there is even anything to believe in!!! How does this make sense?
And this is what we as Christians must approach with grace and understanding. Understanding in that we can't and shouldn't expect a person to live by the standards of God if they are not God's child. This is the world and time that we live in.