From what I understand it’s actually untrue- the media are just more likely to film and show destruction rather than peaceful protests. In Minneapolis there were both massive peaceful protests and looting, but the property damage was covered more than the protesting. Given that the argument for looting is that people care more about property damage than about the protection of black lives against police oppression, this only further evidences the argument for property violence in response to human injustice...
> "Ich weiß, dass wir bei brisanten Großdemos verdeckt agierende Beamte, die als taktische Provokateure, als vermummte Steinewerfer fungieren, unter die Demonstranten schleusen. Sie werfen auf Befehl Steine oder Flaschen in Richtung der Polizei, damit die dann mit der Räumung beginnen kann.
Translation: "I know that we insert undercover agents as tactical provocateurs, as hooded(disguised) stone throwers, among the protesters during large controversial protests. They throw stones or bottles at our command towards the police so it can begin the evacuation".
The majority of protesters are not provocateurs of course. You just need a few of those, or even one, to justify a brutal police response against peaceful protesters.