The closest I can come is that there should be an Afrikaner identity, but no clue as to how that's possible.
Supposedly the government is trying to create a society where everybody has a place, but it is likely that the socialists are simply trying to slowly close in on the productive class until they cannot escape.
The author is calling for whites to abandon their tribe, because their tribe is bad, while pointing out that Afrikaners are a white tribe with a tight identity while being part of the bigger, badder white supremicist tribe in Africa’s apartheid.
In short, “your tribe is bad, abandon your identity, well defined white tribe, it hinders other tribes”.