There's an old saw: A Scandinavian economist once said to Milton Friedman, ‘In Scandinavia, we have no poverty’. Milton Friedman replied, ‘That’s interesting, because in America, among Scandinavians, we have no poverty, either’ [0]
0: https://iea.org.uk/sites/default/files/publications/files/Sw...
N.B.: there was selection for the worse-off in those coming to the U.S.
That's an exceedingly weak defense for a country that imprisons 4x more people per-capita than China.
China's murder rate is about 0.5 murders per 100,000 people per year, while South Africa's is 44 per 100,000 people per year (assuming both countries report honest statistics). That's an 88x difference between two large countries. [0]
0: https://en.wikipedia.org/wiki/List_of_countries_by_intention...