Regarding white racists voting:
Lets think about this..
Bitter white racists, holding a one way plane ticket to another country, who don't care about anyone left behind, would most likely vote for the ANC, not the DA. Whites believe the DA would do well for the masses aswell as everyone else, the DA would have to, they would want to win the vote the next time around. Voting in a charismatic man who likes to change laws, paint himself as a socialist, and say that he is endorsed by jesus, is a very likely path to destruction if you look at history. White racists staying here will ofcourse vote for what they think is best for them just like everyone else. But whats "bad" for those whites is not necessarily whats best for you.
Just remember the AU prez supports dictatorships and thinks the problem with the continent is your right to vote. So watch out for the ruling party at the time, changing laws, squashing opposition, or controlling the media. If they implement it, they will implement it gradually if history is anything to by. Don't let them take one step. It is never in your best interest. It is only in the parties best interest.