Ethiopians, Somalis, Eritreans and Oromos are all very much African, Not everyone has to be bantu, mbuti, or nilotic an so on and so forth to be african,

Also Somalis do not consider themselves arabs, but they do share alot of customs with the arabs and that is due to the fact that the 2 regions have been trading for thousands of years, They are also part of the arab league for political reasons. The late great Said Barre (exiled to lagos and died their) stated that politics was a "chess game"