Antifas should fear whispering death. All that rioting & noise where a suppressed rifle shot would not be heard.
When firing a suppressed .22LR bolt action rifle, about all you hear is the firing pin going "click." You could take down an entire riot and they would never figure out what is going on.
This solution was actually promulgated by no less a mind than Col. Jeff Cooper.
Suppressors are very simple to make.