The riots in South Africa that have been going on, at the time of writing for six days, are not in any way parallel to the BLM, antifa situation in America. There are no white leftist forces driving the violence; rather it is a revolt of largely poor Blacks, motivated on the surface by the imprisonment of former President Jacob Zuma, but deeper, by poverty, unemployment and the culture of resentment. The vicious attacks upon property can only be by a people aching with resentment. But, if these people are so poor, why take expensive TV sets and electronics, rather than food? Well, food is being taken too, but the looting of the expensive gear is an opportunistic thief by people who will never otherwise have the money to buy this stuff.
However, the looting is totally indiscriminate, and Black businesses get looted and burn as easily as white, so there is equal opportunity violence here, beyond race.