If these BLM people had any sense, they would protest outside the police stations and leave all the uninvolved white people alone. They will not win win popular support this way... but perhaps they aren’t even interested in winning popular support.
They look like they want to satisfy themselves that they have made a fuss.
Their goal is to get white people so pissed off at them that they will demand that the black protesters get anything they want in terms of concessions from the cities in order to stop the protests.
All I can say is if there’s a sidewalk that I need to traverse to get from point A to point B, those bastards better not be blocking it. I will step over or through them before I’ll go around.
If they had any sense they would recognize the source of their discontent.
Cassius to Brutus: "The fault, dear Brutus, is not in our stars, but in ourselves, ... "