OK, river, so his background of having British parents was somehow relevant, I take it. His father worked in various countries, not just SA.
That aside, do you think national identities should be abolished? Why else would someone, anyone, be allowed to choose to live/settle/become a citizen of in whichever country they chose, even if their forebears had no previous connection with the country they chose?
I can't just choose to up sticks and go and live in, say, New Zealand. It took years for absent's emigration visa to be granted to do just that.
Could you expand your argument a bit, please? I'm slightly at a loss to understand it at the moment.