No, I do not believe the Bible is a lie or a conspiracy. This sort of reasoning only stands up if you believe that everything in the Bible was meant to be taken literally, every single story, the Old Testament, Jesus' parables, everything. I think people are sadly missing something if they feel threatened by the idea that something may be a myth rather than literal truth. In my book, the word "myth" is not synonymous with "lie." Myths teach us about the nature of life and they teach us wisdom. Within each myth are kernels of universal truth. This is lost if you get lost in the words themselves, and therefore anything that doesn't fit with them has to be rejected as wrong. Plenty of Christians are deeply religious, believe in the Bible, and accommodate the idea of evolution without feeling any conflict between the two.

The Greeks and Romans just loved their stories, didn't they? The Metamorphoses, The Odyssey, etc are cracking reads. I think it is unlikely that many people in those ancient lands believed that these stories were word-for-word true. But they really do say a lot about human nature, which is why people still enjoy reading those stories today.