Also note the striking statistic in the abstract: "...over 40% of those surveyed think apartheid was a good idea, badly executed." And this was a survey conducted in 1996.
Genuine question: why as a HN reader - so probably quite scientific - why is it "striking" to you that after learning on this very forum of referendum where you found out that 30% voted to maintain Apartheid, a mere FOUR years later a poll finds 40% holding a similar position?
You've broken the site guidelines so badly and so repeatedly, not just in this hellish flamewar but before that as well, that I've banned this account.
If you don't want to be banned, you're welcome to email hn@ycombinator.com and give us reason to believe that you'll follow the rules in the future. They're here: https://news.ycombinator.com/newsguidelines.html.
Please don't create accounts to break HN's rules with.
a) surely you are familiar with error bars?
b) where did you think that 30% went?
I would be astonished if the poll said otherwise.