Why could God not have created the world as it is, the Bible as it is, and answer prayers as he sees fit? I understand you would prefer that God made a world without predators, a Bible with clear prophecy, and prayers with consistent answers. But beyond mere preference, what has this actually got to do with the existence or otherwise of God? Can't God be God as he chooses to be God rather than how you would choose him to be?
What is your actual argument?