South Africans can leave the country and emigrate to other countries.
In 2017 210,000 South Africans moved to the UK.
190,000 South Africans moved to Australia.
100,000 South Africans immigrated to the United States.
I was told obtaining visa to leave was difficult, but they may have been talking about leaving with assets.
The rules to transfer assets out of South Africa appear complex.
South Africans are not allowed to leave with more than 25,000 rand ($1,722) or 160,000 with prior special arrangements ($11,020)
That seems to be pretty tight controls.