I didn't address your comment because neither point can be proven

You misunderstand. I was pointing out your bad reasoning in stating that, because you've never met anyone who says that, it must never happen or not happen very often. I'm not taking a position on the actual argument, merely letting you know that you're jumping to conclusions based on faulty reasoning.

it mostly comes down to faith.

And where do you think that christians get the notion that faith is required or can somehow pass for sound reasoning? Their parents and friends. But where do they get it? Their community. And where do they get it? Their pastor and church. And where does the pastor and church get it? The bible. With Christians, if you follow the ladder high enough, it will ultimately come back to the bible.

They have faith in their Deity, just as all atheists have faith that there is no god

First off, you're grossly generalizing here. By making that statement, you're demonstrating a fundamental misunderstanding of what the term 'atheist' means. Atheism, by definition, is the lack of a belief in gods. Not all atheists state there is no god. Many simply reserve belief in whether a deity does or does not exist until there is sufficient evidence to support that belief; it's a belief neutral position. Some atheists do make the positive claim that a god does not exist, in which case they must shoulder the burden of proof for that claim. In shouldering that burden of proof, they would have to provide evidence as to why they conclude that a god doesn't exist, and even then, most would probably not make that claim with absolute certainty. Faith is not required when evidence is involved. Atheists that use reason backed by evidence have no need for faith, and calling it that is an incorrect use the of the word.