Deliberate agitprop and provocations designed to create an incident to rally the troops. Also notice the fat bearded white guy in the video right next to Butler when he hits the car. If you watch videos like this there are usually white “puppet masters” advising and even leading the event, usually professional agitators brought in from outside. For example, watch the video of the Minnesota march where they were yelling “pigs in a blanket, fry like bacon”. Notice almost all the marchers are black but ahead of the marchers were whites with bullhorns leading the cheers.