Author and Activist
Lets consider mathematically what happens when two racially distinct humanoid populations meet. eg Settlers arriving in South Africa.
You can assume as much as you like that these populations hate each other and would never think of cross breeding, but in reality a cross breeding rate of 1% is probably a massive underestimate. In the case of Settlers, they brought relatively few women with them. (emigration is a guy thing)
Lets go through the sequence of events:
In generation 0 the populations are distinct.
After 1 Generation 1% is mixed race.
After 2 Generations, 3% is mixed race – the 1% of new and 2% from the mixed race component breeding back into the original separate populations.
After Generation 3 it is 7% - The one percent plus the 3 breeding back.
Simplified the sequence goes 1 - 3 – 7 – 15 – 31.
It is a little more complicated than that, but I guess you get the drift. Dutch and Khoisan have been fraternizing for 12 Generations, Bantu and Khoisan have been fraternizing for 30 Generation. The simple reality is that contrary to the racist wishful thinking, we are in fact a mixed race.
This should go a long way to explaining why South Africans can't play football like West Africans and why Afrikaners don't buy sun cream and why indigenous is not as endemic as you might think.