Even when there is overwhelming evidence, even an air tight case, few people, including Christians, budge on any issue. I've seen Atheists propose evidence that would convince them, but if existing evidence doesn't convict them, their hypothetical evidence wouldn't convince them. At least Dawkins is honest in finally admitting that.
I've read many papers by Atheists and ex-Christians and it's clear to me that lack of evidence is not the reason for their Atheism.
I don't care what any Atheist believes. The issue to me isn't what a Hell-bound reprobate believes. The issue is I want them to leave me alone to practice my faith in piece, which is outside the will off most Atheists. Until Jesus returns, I'm happy to spar with them, though.