The common denominator for theism and atheism is not knowing if God exists. Neither one has any hard evidence to support their claim. Atheists because of the lack of evidence state their opinion and it is no different for the theist. If there was all kinds of evidence then there would be no theists or atheists. Therefore any atheist cannot totally refute a god nor can a theist ignore the possibility a god doesn't exist. For those who claim to know, they simply do not believe. If you don't know then you either believe or don't. I think the only reason theism is the norm is because there are more who believe. Other than that I see little reason for so much animosity between the two. When both sides argue they argue with no evidence or assuredness. Kind of pointless. The most devoted believer or atheist on this forum doesn't know for sure if they are correct. Yes my religious friends, even you cannot support God with evidence just as I cannot support His absence. It's a draw. I'd pay to hear an evangelist say that.