The whole colonization thing in Africa proved to be disastrous for the Europeans who moved there; abandoned by their governments, often unable to flee with any assets (since their wealth is tied up in land & machinery). The past fifty years really demonstrate what Africa lost when the whites left...
Amy Bhiel would have been proud.
All of them should leave for safety reasons and be welcomed as industrious immigrants by countries on other continents.
With the one notable exception of Botswana where there was a real melding of peoples who now all call themselves Tswana, whether white or black or whatever
The past fifty years really demonstrate what Africa lost when the whites left... - again, it really depends where -
in Botswana, the whites never left and are completely integrated
in the DRC (Congo), despite the latest hell, it was no better under whites (think of the Belgian King Leopold's genocide) or Namibia with the Germans committing genocide there.
in East Africa it was more or less the same as under colonization with the exception of Kenya which is doing much better now
In West Africa in general it was better under colonization - with the exception of Senegal. Arguably the French never really de-colonized in West Africa, they just changed the names of the states.