When I wasn't a Christian, I knew lots of people who relegated Christianity to a light and flimsy place in human thought. Eventually it struck me that they behaved like people who live with a terrifying secret. They were ready, even eager, to accept any explanation so long as it kept them from opening that dreaded door. I found that "anti-witness" very intriguing.
You know, if Christianity is all a bunch of fabrications, why do people spend so much time and money trying to debunk it? Why not go after any of the other world religions? Could it be that accepting the reality of a God who can intervene in human affairs might require people to change their lives?