I ran out of time to continue posting on this thread back on page 1, so I'm just throwing in a little postscript to explain where I was headed with my earlier posts.
(1) We can't be 100% sure of anything. Did evolution happen? Almost certainly. But nothing's 100%. To dispute the uncertainty of our knowledge is ridiculous. Are you even 100% sure that the sun will rise tomorrow? Then you are arrogant or ignorant.
(2) All of us nevertheless make certain assumptions in order to live our lives. We are free to make these "100%" assumptions in our own mind, but we have to acknowledge that we are doing this, and that everyone else does this too, when the subject of "facts" comes up.
(3) Some evidence that people find convincing is something that only they have experienced. We are not in a position to disprove their personal experiences. To mock someone for hearing a voice or seeing a vision, or simply having a feeling in their heart that God definitely exists, is also arrogant. We're free to doubt them, and to politely express our doubt, but mocking them indicates 100% certainty about something we cannot disprove.
(4) We should respect the fact that other people will not accept what we consider to be facts no matter how hard we try. Moreover, asserting that we're the only ones accepting the "facts" does nothing to facilitate intelligent conversation. While it may make us feel better to ridicule someone for not trusting science above personal experience, it only makes us look bad on a personal level, and, more importantly, our beliefs will become less appealing to that person.
So the choice is simple: (a) you can make yourself feel good by publicly announcing that only your side knows and lives by the "facts", or (b) you can acknowledge uncertainty and individuality, be humble (or at least fake it) about your own position, and either politely try to win someone over, or just agree to disagree with such ones. From the standpoint of human relations, what is and is not a "fact" is partially irrelevant. None of us are robots, and all of us have feelings.
The only reason I butted into this discussion was to express my annoyance at the threads I see where atheists are sniping at religious people and saying, "I'm just sticking up for the facts and fighting ignorance", when all you're doing is harm to your position in the eyes of the people you're supposedly trying to convince. I don't participate in any of those threads, and I probably won't discuss this topic again. I just had to get this off my chest.