There is lots of evidence of semitic people in egypt over various periods. Also egyptian conquests & long lived administrations in these regions. "Semitic," as

There is lots of evidence of semitic people in egypt over various periods. Also egyptian conquests & long lived administrations in these regions. "Semitic," as a language group is pretty big. There are also semitic languages spoken to the south of egypt, who were also interacting a lot with egypt. The Egyptians glorified their history like any political culture does, but massive defeats don't go unrecorded. They just make them seem like wins.^ In the relevant period, egypt (and the whole region) went through extreme instability. Historians don't totally understand it, and people then may not have either. But, there's lots of historical record of chaos and defeat. There are even surviving letters between besieged nobles candidly admitting major losses. I think it's more likely that exodus was just a much bigger deal to the Israelites than it was to Egyptians. To Egypt, it was no big deal. If Pharoah really had witnessed the sea part, and an angry god destroying his army... there would be a relief. Egyptians recorded noteworthy events. That said, it was a declining period and the egyptian record is patchy during these times. ^EG https://commons.wikimedia.org/wiki/File:Seev%C3%B6lker.jpg#/media/File:Seevölker.jpg https://commons.wikimedia.org/wiki/File:Seev%C3%B6lker.jpg#/...