What do you expect? In every case throughout history where Black people have suffered injustice, they appealed to reason and then more successfully used violence (e.g. Haiti revolution, slave uprisings in America, civil rights movement). If this is what history and uncompromisable society is telling them is successful, that is what they're going to resort too. Incredible that people see BLM as a significant threat to peace but Donald Trump, not so much anymore.
...and how to stay positive