It is reverting to the average black African way of life. It may as well be a universal constant.
That’s how Apartheid was originally sold, the acknowledgement that black and European societies were different and incompatible, and yet black societies could still function as they always had, and there was a structure that worked for them.
But the problem is that wasn’t how Apartheid worked, the blacks were exploited for their labor in white-run companies, and then told to go back to their shanty towns. So they got a taste of the European society, but couldn’t enjoy its’ fruits.