I agree....though many people from these armies settled in Egypt and progeny. The Copts were less likely to be descended from these Arab armies and thus the most likely (even more likely that the Jews) to resemble Ancient Egyptians both in appearance and genetically.
That's "had progeny."
Actually, I saw a movie from the early thirties. Tut looked like an Englishman named Boris Karloff. Maybe they had the same mum-my.