Why does a PhD in chemistry and physics discuss things as is he is a ThD? Your science convictions are right, no argument. I accept that you are no dummy, but why are you defending Christianity?
I defend the Christian faith because I believe it is true. I believe Jesus was who he said he was, and that he backed this up by his life and his deeds. I believe science is of some value, but science does not answer the questions we really care about—Why am I here? What is my purpose? What is the right thing to do? Why is there suffering and evil? Science is useless for these questions. I believe that Christianity answers these question in a much more consistent way than naturalism (science as a philosophy) or any other ism. I do this because it matters. It matters a lot.