Equating protests with riots is a bit nonsensical. We should consider how the police has treated black people for the last 100+ years, to start. Protests like these have been long overdue.
I don't understand your point. There were widespread riots across the US during the summer of BLM, with many police forces standing down in the face of them.
And your point about black people in no way justifies the indiscriminate violence perpetrated by the rioters.
And your point about black people in no way justifies the indiscriminate violence perpetrated by the rioters.