Lol. I don't doubt that you do, given your professed disbelief. But yes. You're correct.
Because it was that group that told the stories and eventually evolved into the Jews. Other groups at the time either died out, or morphed into something else. The OT stories reflect, not only the Hebraic lore, but imported lore from the Assyrians, Babylonians, etc. In fact, the El of the OT is not the same God as YHWH. These legends/myths/etc. were told for literally centuries before being written down. They were never taken literally by the Jews. I don't see any reason to change that POV...