Scientism's Self-refuting Nature

I enjoy making the point to my philosophy students that science qua science cannot undermine God-belief. Claims that one "should" only believe in physical or visible evidence are not, in and of themselves, empirical claims. I meet students who stubbornly insist that physical reality (materialism) is "all there is" while remaining happily unaware of the fact that such a statement could not arise from strictly empirical observation. Here we come face-to-face with science-as-religion.