Foreigners are not members of the south African government, they are not local elected officials, they are not CEOs of South African banks, they have no government contracts . Those commoners just open their own stores , not expecting any welfare check from the South African government. So why burn down their stores?
This is nothing but witchcraft . A practice in which those who failed are always angry and out to get those who worked hard to make it. It is also called bottom line leveling or red lobster life style ( when you put red lobsters in a basket, you will see those who can't climb are pulling down the ones who are trying to climb ).