Just a reminder to readers, there is no historical evidence for the mass jewish enslavement by egyptians as described in the torah.
Maybe you mean archeological evidence, or corroberating historical evidence?
The Pentateuch is a work of mythology. There is strong textual evidence that it's a compilation of many different stories and sources over the course of many years. It was most likely written centuries after the events it purports to describe. It is full of wildly unrealistic claims.
No. People make up stories. Obviously. Harry potter isn't historical evidence of the magical abilities of past humans.
In the future, when humans just upload data directly to brains, and nobody remembers what a school is, then Harry Potter absolutely could be used as historical evidence that schools existed and that children went to them. The fantastical bit about learning to be a wizard may be discarded by other evidence (or lack thereof).
Sewers are real. Turtles are real. Is Teenage Mutant Ninja Turtles real?
The other evidence for a school must be conclusive. Only from that evidence could you then say Harry Potter's schools were real. It's the other evidence that is evidence. Not harry potter.
Anything in Harry Potter not proven by something else, must be assumed to be fantasy.
Last paragraph: "In short, the biblical writers invented the idea that the Israelites lived in Egypt in order to impel them to maintain their distinctiveness in Canaan. And the story of servitude in Egypt is an allegory of servitude to Egypt. Our ancestors, among others, did perform forced labor for Egyptian taskmasters, but they were never slaves in Egypt."
If people are interested in a rigorous treatment of ancient economics and their surprising modern relevance consider they should really look into Hudson .