The story of Moses and Egypt is one that I'm not so certain about how we interpret it. The traditional view of a massive slave population that is shepherded out of Egypt is one that I think even LDS orthodox sources (institute manuals or FARMS, can't remember which it was) limit with possible interpretations of how the large numbers of people could be reinterpreted as mistranslations of linguistically similar phrases. There's one thing I feel fairly certain of. Our view of the pre-exodus Israelites being wretched slaves is probably a bunch of ethnocentric bias. Probably closer to the truth is that the Israelites were a local aristocracy that had their privileges taken away so that they had to pay a sort of "human labor" tax that was typical of Egyptian peasants.
Here's how the reasoning works:
Genesis 47:12 suggests that Jacob and his family were being fed by the
gift of Joseph's rank and position- ie would probably be exempt from
selling themselves and their possessions as described in 47:14-20
because they had Joseph giving them the food for free. You end up with a
unique political situation of 3 land owning classes, being Israelites,
the Priests (47:22) and the Pharaoh himself (47:20). So it seems
inappropriate to interpret them as equals with the Egyptians and then were slaves, they are
an aristocracy. This seems supported by Exodus 1:9 which shows the
Israelites as being a competing political center of power. From the
historical record we know that a large part of Pharaoh's social
organizing power lay in conscripting normal peasants to work on public
works projects when the land was not fit for farming. Exodus 1:11
describes the Israelites getting conscripted or a public works project.
So when we think of the Israelites as slaves we are probably misreading
the situation. If the Israelites are still shepherds at this time the
work season may have felt more oppressive to them since sheep and cows
don't have seasons of the year where you can ignore them because the
Nile is doing the wrong thing at the moment. However from the
perspective of Egyptian government they probably simply had their
aristocratic privileges removed and are being made to work on public
works projects like normal citizens. These public works projects would
expose them more directly to the Egyptian religion as many of the
building projects I'm guessing had sacred contexts to them. Being
required to work on public buildings to the honor of a God-King and his
pantheon you don't believe in could eventually pressure the Israelites
to socially bond into the Egyptian religion. This might increase the importance for the Isrealites to leave before they completely blended their culture in.
The really funny thing about this is that all the biblical archeologists who are looking for evidence of a massive slave class are probably never going to find anything because the condition of slavery as referred to biblically is probably just the hard labor life of a typical ancient Egyptian peasant- so it would be comparatively indistinguishable from the surrounding Egyptians who were working there. There could be differences for certain, but not anywhere near as many especially since they would be living in worker camps (not their own permanent dwellings where they might make more dent on artwork or literature) along with typical Egyptians. Even if the tale of Moses leading the tribes out of Egypt is in general outline correct and not a history/legend mix, the chances of any archeological Hebrew slave class being found in the Pi-Ramsees is pretty much nil.
7 months ago