The out of Africa theory was that civilization came out of Africa into Egypt and spread into Europe. The Egyptian Pharaohs were thought to be African not European.
DNA studies seem to indicate that Homo sapiens originated in Africa, so all human beings are "out of Africa."
Actually, the DNA studies were not needed. One of my high school classmates proved it from the Bible. Adam named all the animals, so the Garden of Eden must have been in Africa for him to name the lion.