In the broad strokes, South African history is pretty straight-forward. The Portuguese took the East route to India, because the Spanish had claimed the West.
Their military was weaker than any of the South African nations that existed at the time; thus they settled on the islands to the east.
This established a peaceful trade in addition to the one already established along the east coast to the north. And it lasted for the better part of a century.
The Portuguese then lost their power to Spain; but the Spanish seemed hardly interested in Southern Africa at all.
Slowly, military technology was evolving; as were ships. Slowly the protestant reformation was taking root.
The Spanish were conquered and the great rivalry between England and Holland began: healthy rivalry!
And now the European military was strong enough to take Cape Town by main force. And now the Hugenots had a place to run to, away from religious persecution.
It would not be wise to haggle over how much of the land was bought at a fair price, how much taken by force, and how much cheated: boys will be boys.
The English respected the claims of the Dutch to Cape Town, and had no reason to make war for it.
But the French Revolution left a great big hole in the European continent. And, followed up by Napoleon, knocked the life out of Holland.
Thus the Dutch in South Africa became a nation of their own. But England would not risk them becoming a power of their own, to later on threaten her shores; thus England established herself as master of the Cape Colony.
England did not want to extend her territories, and refused petitions to start a new colony at Durban.
But the Afrikaner, now, overwhelmed by feelings of servitude, went beyond the borders of English rule. Were they to be in command of a port, there would be the risk of them communicating with the enemies of England. And thus Natal was established.
And the feeling of enmity on the side of the Afrikaner grew to a bitter hatred.
And then diamonds were discovered, and the world descended on South Africa.
And then diamonds were discovered to be worthless; so numerous were they. To prevent those who had come to South Africa with their last penny ending their life in ruin, the diamond monopoly was established.
And then gold was discovered, but in a state which required machinery which the farmers could by no means acquire. Thus the English established themselves as a community within the Afrikaans state of Transvaal.
And bitter hatred does terrible things; but so too, capitalists with more money than sense.