I suspect this is the result of fear mongering from your chosen news source. ANTIFA has killed one person in 25 years, and it was a self-described ANTIFA member, not a part of a larger plot. Right wing extremists have been responsible for the majority of domestic terrorism in recent years, including killing cops to incite a civil war.

Also, I'm in no way condoning the riots, but I wasn't able to find a single incident where residential property was significantly damaged. The narrative that roving gangs are coming after the peaceful suburbs is not true and, quite frankly, tone deaf to the real issues.

People have a right to protest and a lot of people in this country have a right and a reason to be frustrated. A cop got caught murdering someone and after weeks of protesting it still wasn't clear if that cop will actually face justice and if any real change will result to fix a system that is blatantly unconstitutional.

Unfortunately, anarchists from both sides took advantage of the chaos and a bunch of organizations piled on their own narratives from all sides that far exceed the scope of police accountability, completely distracting everyone from the real issue, which I suspect was at least a few organizations' goal all along. To be fair, other organizations were trying to piggy back their own unrelated issues as well.

I'd be far more worried about some armed alt-right militia trying to trigger a civil war (again) than thugs ravaging the suburbs. Putting some meaningful thought into police reform (not defunding) instead of just waiting for the outrage to die down so nobody has to actually fix the issues, would probably fix the problem the fastest.