My mentor Dr. James Strauss argued that defending the Christian faith is not necessarily about gaining more knowledge, or more evidence. It's about helping people see things differently. Skeptics who disagree don't accept this of course, but then maybe they were never on the Christian side of the fence. And maybe they don't understand why they deconverted away from it either. Seeing things differently demands a Gestalt shift, a paradigm change in the fundamental way people view something. It can be facilitated with more knowledge and evidence of course, but as with any enculturated or brainwashed mind, it might not produce a deconversion. It demands a willingness to see the Christian faith differently, and so that which forces them to see it differently is probably almost always person related. Check this description out, along with these images.