I'm guessing that your source for US History didn't teach you about the
Birmingham riot of 1963, then.
The conditions were not entirely dissimilar to what's happening now: whites commit violence against blacks; blacks (and white sympathizers) respond with peaceful demonstrations; minority of frustrated protesters turn to rioting.
Oh, and guess what happened? The supermikes of 1963 lumped
all the protesters into one big category, wagged their figurative fingers, and said things like "This is ineffective and wrong!"