I must share a deal of the blame, since I introduced the matter of the Documentary Hypothesis as a further indication of the existence of two separate ancient Jewish kingdoms.
Perhaps if we tried to bring things back to the purported existence of the two kingdoms, we might then proceed back to the question of evidence for evidence of the Exodus etc.?
Pious hope
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The problem is that some don't see an issue in accepting Scripture as unedited historical fact, which was never its' purpose.
They analyse word-for-word without noticing the lack of actual extrabiblical evidence to back up the 'literal fact'.
As posted earlier, I have absolutely no issues with Semitic populations - even small communities - in Egypt from as early as 2000 BC; there's ample evidence from Beni Hassan tomb paintings to show Semitic contacts at court lrevel, and the peaceful incursion of Semitic tribes which became something of a takeover of the Delta around 1800 cannot be disputed.
All ancient peoples had a habit of exaggerating stats - the Egyptians were experts at it; so, it appears, were the editors of the Pentateuch. The numbers suggested for the Hebrew Exodus were simply impossible - Even the whole of Lower Egypt had no such population at that time!
That a group of Semites left Egypt to enter Canaan is perfectly possible - even that a Semitic official was a high ranking courtier in the Egyptian state is very plausable; many examples of non-Egyptians making it big exist, some marrying into the ruling family and fathering future kings.
I have no doubt that some sort of migration of a small number of Semitic tribesmen occurred....but the rest is conjecture for which there is no proof.