That may have been a very poorly (and rudely) formatted comment, however the actual historicity of Exodus is doubted by scholars. https://en.wikipedia.org/wiki

That may have been a very poorly (and rudely) formatted comment, however the actual historicity of Exodus is doubted by scholars. https://en.wikipedia.org/wiki/Book_of_Exodus https://en.wikipedia.org/wiki/Book_of_Exodus "Most mainstream scholars do not accept the biblical Exodus account as historical for a number of reasons. It is generally agreed that the Exodus stories were written centuries after the apparent setting of the stories." "However, a majority of scholars believe that the story has an historical core,[12][13] though disagreeing widely about what that historical kernel might have been." I am not a scholar, however given just how many tribes Egyptians subjugated, and just how syncretic much of the early Israelite religion was, it's certainly not unreasonable to think that there was at least some group of people which had a "fleeing from Egypt" story which did later get subsumed into the Israelite religion.