South Africa started out with black tribes who worked the Dutch to build a country so strong it was the envy of Africa. Over time in was invader by the Zulu and other blacks from the north. Now the original people and the white are badly outnumbered and here is what happens. This black immigration is heading into Europe also into North America. How long will it take before the people learn it is coming here the news media will tell you the opposite like they did in South Africa South Africa: Failed State INCOMING
I don't know why Black nations don't seem to be able to govern themselves in a sustainable manner. Some of it might be the way they were controlled by the non-Blacks during the colonial days. I think it is true that there were few Blacks in South Africa when the Dutch first arrived, and many Africans from the North fled south to avoid being killed, sought protection from the Dutch, then the British, and ended up as virtual slaves.