Speaking entirely for myself here as an atheist, I think most of us just want to be left alone to believe what we believe without having religious people constantly approaching us with "Well, you don't know Jesus, that's why you believe X,Y, Z." As if they're somehow certain that a God exists and that we simply aren't enlightened enough to see it.
Well, the devout most decidedly are certain a god exists and that everyone else aren't enlightened enough to see it—where it is the given devout person's chosen god.
