That certainly seems possible, but most of the people out there throwing theories around seem to have little thought for the Egyptians as people, just their architecture.

I would also think of Graham Hancock, while hoplessly focused on the super intelligent hidden source for human history, he is willing to accept that Ethiopians could succeed in taking the Ark of the Covenant (another place he is almost certainly hopelessly wrong).

I fail to see why they don't all go jump over to the Maya etc.