I agree with all you say, EXCEPT "Stable 'empires' existed way before the Europeans came". In Southern Africa the Xhosa fled south, the Swazi north, the Matebeli even further north, over the Limpopo...all to escape Shaka. In the rest of Africa the murder, rape and plunder is what drove the Zulu (and ultimately Shaka) down here in the first place! Ethiopia was never colonised, is it a stable 'empire'?