Unconditional belief in God?

Before we ask the question "Does God exist?" we first have to deal with our philosophical predispositions. If, for example, I am already dedicated to the philosophical idea that nothing can exist outside of the natural realm (i.e. there can be no supernatural God), no amount of evidence could convince me otherwise. Asking the question "does God exist?" would be pointless. My answer would be "No, He doesn't," regardless of whether God truly exists or not. The question would be impossible to answer from an evidentiary standpoint simply because anything which God might have done (that is, any supernatural act which might serve as evidence for His existence) would have to be explained away in terms of natural causes, not because we know what those natural causes could possibly be, but simply because a supernatural God is not allowed to exist!