You're a sucker for a kicking, aren't ya.
The first words in the bible are "In the beginning, God created the heavens and the earth." -
Who wrote that and when, whoever they were they weren't witnesses so they had no way of knowing.
Genesis then goes onto say that Moses wrote it. Obviously he did not write the entire book - and many people try and say Moses never existed - yet, the Jews believe it. Moses was before the Babylonians exile.
So the author of genesis lied, Moses didn't write it but if he did what language did he write it in? Moses never existed, he is yet another fictional character. Do you know of the Nazi propaganda well the Jews in Babylon were way ahead of them.
David refers to Genesis. David could not refer to a book that was written after he lived if it was written in the time of the Exile. Samuel and many others also refer to the book of Genesis. These authors lived after Genesis was written but historians place them before the exile of Babylon.
Here is some truth just for you. If the authors in Babylon were writing a glorious history of a powerful empire that was really just a small insignificant little tribe of goatherds do you think they may include some smal examples of continuity? Mostly they failed in that regard but in your David scenario they got it right.
It may be the case that Deuteronomy and Chronicles was written during the Babylon exile. Jesus too refers to Genesis as at the beginning. Paul clearly does as well.
The NT authors got 99% of their story straight out of the OT, anyone who reads it honestly can only come to that conclusion.
the internal evidence is clear I think to refute the notion that Genesis was written during the Babylonian captivity.
It really doesn't matter when it was written, it's a pure fabrication. Who was there to record god saying let there be light?