Jeffro:
There are obvious and broadly accepted connections between the biblical ‘J’ stories (where ‘J’ is simply shorthand for those stories that we all know I’m referring to) and Mesopotamian stories, particularly the epic of Gilgamesh. It isn’t the case that there is no way to know that, and it isn’t remotely surprising or controversial that Jewish culture was influenced by Babylon.
My comments were about the origins of all mythology from the Bronze Age that shared common elements, not about where the Hebrews based the narratives found in their mythology.
We have no real historical records whatsoever for any civilization due to the Great Bronze Age Collapse, and that was what I was commenting on. Stories like the Trojan Horse tale might have been such a tale, but the Collapse makes it hard to tell. This is an example.
The mythology in the Torah fit within this model, but I was only speaking of their stories in light of the Collapse. We know they have connections to other Bronze Age stories, but none can claim which came first since many civilizations have similar stories and heroes in several cases, though not always.
The Jews do make reference to purposefully adapting Babylonian tales, often to mock them, and later scholars learned they were often lifting from the Epic.
But this is true about all our practices and celebrations. They come from various different sources and cultures, like Purim--totally grabbed from others.
Only Hanukkah comes from a historical event, but that was altered by rabbis with a "miracle" story since the Hasmonean dynasty ended in failure.