This is more Antifa then Black Lives Matter. This is what is going to spiral very soon, as more and more people get frustrated on both sides. And if the police do not care to do anything about it, then more of this will happen.
If someone I know is in that car, and rowdy protestors/Antifa members start smashing windows, hitting the car, trying to beat people up, and then expecting a peaceful protest, is not going to happen. The people in the car are scared, and need to get out of there.
As I have said, protest on the sidewalks, in the parks, but DO NOT block traffic, hit cars, and then stare at amazement when a driver tries to get away. The car is not on the sidewalk blocking your protesting. You are blocking and scaring the people in the car on the street.
Enough is enough. Either we get more stringent or more anarchy on both sides will come.