Their fictional explanations of what you (or any of us) believe and why we believe/disbelieve as we do are designed to insulate them from having to think about our objections. If it's "pride" or a desire to "dwell in our sin" or simple rebellion against the light, then they can lean against their Bible and say, "See, God called it!"
In the end, it's a kind of intellectual cowardice.
In the end, it's a kind of intellectual cowardice.