You should not underestimate the extent of undercover/false flag instigators of violence at protests. At least here in Belgium this is a practice that is uncovered nearly every time when some violence erupts at demonstrations. The individuals that start the aggression are later photographed to be chilling and changing attire behind police lines.
Usually people at large anti-establishment rallies know very well there is litle to be gained by violence. Those in power otoh know very well how they can turn media coverage spotlights away from the issues and towards any disruptions to discredit or mute the actual grievances.
If media coverage is diverted from the real issue, then why are Fortune 500's publicly posting statements and making donations? Just about everyone consumes social media these days; it would be hard to ignore the grievances of peaceful protestors unless you watched exclusively cable news.
Usually people at large anti-establishment rallies know very well there is litle to be gained by violence. Those in power otoh know very well how they can turn media coverage spotlights away from the issues and towards any disruptions to discredit or mute the actual grievances.