have they been there for a few hundred years? and white south africans are accepted as citizens by the blacks. if i plant my seed in america after 400 years my descendants cannot claim to be more somali than a arab-bantu biracial somali national from an ethnic minority.
An ethnic "minority"? You make them sound like miskeen people that didn't violently expel, dispossess and humiliate actual Africans in a Nazi like program.
Also, why are you equating your hypothetical seeds (that arrived in the West as powerless refugees) and are subject to the power and laws of these Westerners with a group of people that imposed their will on others?
If Africa was economically, politically, scientifically-technologically and militarily powerful...I would have been in favour of expelling all the white South Africans after the end of Apartheid.