The difference between a black or a white president in handling civil unrest : Very little. It is the state and the structural violence, not a colour of a president. I would say Obama, the liberals’ idol, was worse, for although he was black, he presided over the very same racist socio-economic structure and the institutions of violence in the American society.
“The West won the world not by the superiority of its ideas or values or religion (to which few members of other civilizations were converted) but rather by its superiority in applying organized violence. Westerners often forget this fact; non-Westerners never do.” —Samuel P. Huntington, The Clash of Civilisation and the Remaking of the World Order, 1996, p. 51