Xenophobic attacks on foreigners in South African townships

Attacks on foreigners, such as Zimbawians and Mozambicans, have resulted in an imense wave of Xenophobic attacks in various areas of Guateng in South Africa. The locals feel threatened by these millions of foreigners. More than 3 millions Zimbabwians alone, are trying to find accommodation and jobs in South Africa after the total collapse of the Mugabe regime and 30 years of brutal dictatorship, and recent electoral fraud.
Foreigners have been killed and some even set on fire, during a violent weekend in the townships.
Both Mbeki and Zuma has called for the violence to end.
What about Mbeki being much stronger in condemning Mugabe about the causes, forcing millions of Zimbabwian refugees to flee over the RSA border into South Africa, which consequently cause enormous resentment in the local communities overrun by these desperate refugees from war-torn Zimbabwe??