For me to consider God as factual I would have to run "God-facts" through the scientific method. Simply, if there are no God-facts which I can accumulate then there is no debate to be had.
If I am strolling down a dusty road and in my purview a burning bush speaks to me: a) I've had a psychotic snap, or any other inumerable explainations....
Further, to clarify, perhaps God is not meant to be taken as fact..but to only exist through faith.
Predict the "end of science" at your peril!