Lots of poor people that are treated badly by the government, I suppose.

Nearly that many are murdered in the USA every year (they get just over 17K murders per year). That's possibly more concerning as the USA is supposed to be a shining beacon of greatness

There's some history involved but it's mainly because so many peop;e are dieing of AIDS and they just don't care what happens to other people : they kill indiscriminately for whatever they can steal.

The history dates back to the apartheid era when the government tried to help the people suffering from AIDS. They encouraged them to use condoms. The ANC discouraged them from using condoms because they thought it was an attempt by the white government to keep down the numbers of blacks.

Wherever there is a wide disparity in social welfare and wealth there will be envy and a high crime level. In South Africa there are some that are wealthy living relatively close by other with absolutely nothing. An explosive situation.

When there is rank poverty, disease, social and legal injustice... It is difficult to engender the values and principals of social conscience.