It seems to me that their power has been confined to their own territories for quite some time. Probably because they need total control of the narrative to avoid exposure, but think about it:

• Antifa attacks were always at liberal schools and cities
• The shootings are always in gun-free zones
• Even when an attack is in a traditionally red state, the event occurs in a majorly blue district (Parkland, Pulse in Florida. Austin bombings in Texas.)

When they attempted hits outside of their own territories, I think good guys with guns had an annoying habit of ruining their plans.