Criminal behavior from someone else does NOT mean you can commit other criminal acts.

“But it is not enough for me to stand before you tonight and condemn riots. It would be morally irresponsible for me to do that without, at the same time, condemning the contingent, intolerable conditions that exist in our society. These conditions are the things that cause individuals to feel that they have no other alternative than to engage in violent rebellions to get attention."

Oh yes, let's justify violent protest with burning and looting. That solves everything.