There does seem to be overwhelming evidence that certain proofs are being systematically ignored or redefined or hidden, in order to eliminate possible "confusion".
All ancient cultures in the Mesopotamian region tell a Great Flood story.
The conclusion, there was a great flood. Just saying the term "flood" implies they are familiar with flooding.
So the question is not if there was a great flood, the question is how far did it extend? Was it global?
When the ice age ended 10,000 years ago (give or take a lot, it was a slow process), the melting ice raised the global sea level enough to flood vast expanses of land, land occupied by people that had to move/fight/adapt. It wouldn't surprise me that these stories got passed down from generation to generation as a global flood by an angry god.
That can't be right...the earth is only 6,000 years old after all.
That depends on from where in the universe one is measuring its age.