It should be open season on them.
These people are dangerous as Hell.
Ah well, never happen but if it did, Antifa would dissolve in a matter of hours, maybe minutes. At their core I'd bet you all but a relatively few are cowards. They feel bold, they feel safe in big numbers. Take that away, inject very real personal danger into the mix and they're gone.
Sounds to me like the prelude go a RICO prosecution.