Entirely unsurprising. At the risk of whatever, your extreme atheists aren't much different from your extreme believers; they both have strong beliefs about things they can't prove, and for some reason want to go off on them.
Even people like Neil DeGrasse Tyson don't go on and on about "atheism" for a reason; there are a whole lot of things that we all go around everyday "not believing."
Even people like Neil DeGrasse Tyson don't go on and on about "atheism" for a reason; there are a whole lot of things that we all go around everyday "not believing."