Nice seeing someone knowing South Africa wasn't just segregation and descrimination.
The approach of Afrikaners was to separate each culture and tribe to their respective areas, like done in Europe, they wanted to have the same model here.
Since Southern Africa was riddled with tribal wars, they sought to break up each group and establish classes with the respective areas. When the whole country was already mixed up with townships rapidly growing on the outskirts of towns, they had to force relocation. Which of course brought international outrage.
They understood that sudden wealth distribution between the previously poor would lead to corruption, which is why the tagerted communities had massive development in schools, housing and hospitals.
Then with each group seperated, they would get rid of the cultural barrier but the language barrier would still exist. For this afrikaans was introduced into the schooling system so that when seperated, they could still communicate with full understanding. Which i would personally say lead to more trouble than needed.
Also another factor to the downfall was the massive immigration from the rest of Africa, coping with millions of blacks coming in had the same effect that Europe is currently facing.
With the massive border South Africa had, and an all ready massive black population grouping up to fight apartheid, they had a hard time controlling the masses.
Knowing that it could still have violent results, even when separated, the afrikaans government needed to be a leading military force stronger than these factions. Therefore developed a nuclear arsenal so that they would be superior while the transformation happens.
Of course all these actions were just shown in the in bad light. Leading to all the international pressure. If south africa never faced all the sactions, and the ANC never got all their funding and training from the soviet union. South Africa today would have been completely different.