As stated before, the ancient Egyptians were not Europeans or Asians, but largely indigenous Africans, both biologically and culturally. Ancient accounts and recent research have shown that culture and civilization spread into Egypt from the south, especially from Nubia.
Archaeological findings in Nubia that predate the start of the Egyptian empire display aspects similar to Egyptian culture. For instance, an incense burner was found depicting the earliest known representation of a king in the Nile Valley. The unknown king is believed to have lived in Nubia, approximately three generations before the time of Menes, the earliest-known Egyptian ruler.
This is not to say that there was no cultural or genetic influence from Asia, but any such influence was not sufficient to dilute the fundamentally African cultural identity of ancient Egypt.