Is South Africa on the verge of a civil war?

I have heavily edited this graphic video footage and made this video adults only. Three members of one family in the coloured community in Lavender Hill in the Cape were set upon by black gangs and burnt to death. The coloured community have openly called for a civil war against the blacks in the Cape. Let's pray that wise heads prevail and the authorities actually arrest someone over this atrocity.
See also:

South Africa,Cape,