"Absolutely not"? I think that's excessive, "Stands to reason"? OK. I can agree with that.
My recollection may be biased, I admit it. If possible, remind me of the parallel stories from the surrounding older cultures? The most convincing examples would be parallel stories which are not reflected in other geographically distant cultures. The last time I looked at this, that was the weak point in the arguments claiming cultural appropriation and adaptation. The examples provided were common archetypes in other ancient religious/mythical creation stories as well. This undermined the impact of the examples provided.
Only in writing... All ancient cultures engaged in oral story telling, right? Is there any reason to to exclude the tribe from the other side of the Evir river ( aka the Hebrews ) from this?
Well, if you would like to discuss or debate it, I'm happy to proceed. If I recall, the evidence supporting appropriation/adaptation resulting in the book of Genesis is not iron clad.