"We can take care of all of this quickly and quietly" and we will when it happens just once in our own backyard. As it stands now, the Antifa attacks happen in leftist strongholds with the blessings of local politicians and police forces ordered into an observer-only mode. Let a group of masked hoodlums appear on any street corner in the South or heartland and ordinary citizens, along with local law enforcement, will be rushing in to begin taking care of business just as you've described.