If the Bible were set in a purely desert environment (as it is usually depicted in Western films), it would not likely not have produced stories that Europeans could relate to. But it wasn’t. The landscapes of the Galilee and the Judea-Samaria mountain range west of the watershed were (and are) very similar to those found in southern Europe (Greece, Italy, and Spain).
For starters, there is no historical evidence for the existence of Moses as a historical figure—i.e., a Hebrew raised as an Egyptian prince who flees into exile then returns to lead the Hebrews out of Egypt.
Secondly, the Exodus story is likely an embellishment of the forced exodus of a quarter of a million Canaanites from northern Egypt at the end of the Middle Kingdom period in 1550 BCE, which marks the beginning of the New Kingdom period. Even if they had a charismatic leader who might serve as the basis for Moses, casual but clearly assured graffiti inscriptions in a well-defined Canaanite/Old Hebrew script on statues in the western Sinai at that time support the evidence of Canaanites indicate that by this time, even ordinary folk (probably teenage boys, or young men) were literate in that script—which indicates that the script was invented a considerable time before that.
[A2A] Because He was putting on a show, to demonstrate to the Hebrews* and other nations that He is the greatest—nay, the only—God.
This was, if you like, God’s comeback performance (His first since the Flood), so he was intent on making a big impression. And what greater impression could there be than to beat up and humiliate the most powerful kingdom in the known world at that time?
Ancient Egyptian paid the price of being over-exclusive. Since the skill of writing (and reading) hieroglyphic, hieratic, and demotic writing was jealously guarded by a small, exclusive caste of scribes, once the Alexandrian and Roman conquests undermined the old Pharaonic regime and made Greek the new language and culture of the elite, that skill became largely redundant, and died out with the scribes.
The names of the Hebrew/Phoenician alphabet were given by the ingenious Canaanite slave(s) who first invented them some time in the 1900s BCE, possibly inin Egypt:
Detail of an inscription on a rock face in Wadi El-Hol, Egypt (near the Valley of the Kings)
Just to be clear: no Jews became slaves in Egypt, just as no Canadians died in the Black Plague of the 14th century.