Arab-African Relations from Liberation to Globalisation

Is it legitimate today to subdivide the African Continent according to the "races" it contains? Can this, moreover, be simply done with an historic content for race, or an idealistic concept of identities? Or are we going to talk about the Arabism of Egypt, Libya or Morocco as if it were an identity gained with the advent of the "Arab Race", implying that these were "lands with no people" - a sort of No Man's Land? Or fragile spaces that could not confront the invading Empire? Or will Arabism equate Bantuism or Negroism at one time, and Haussa and Swahili cultures at other times? If we continue in this vein, we shall end up with Arabism confronting Africanism with no scientific definitions, and thus quit the domain of social sciences, and enter the realm of easy ideologies, in an epoch of the great phantom ideologies.