Whenever this sort of confrontation occurs, they should rip off the masks and take pictures for identification. Send the pictures to a national database so that other communities can use it to identify miscreants invading. Along with the pictures, tell where the picture was taken. I’m betting that there is a regular contingent of fomenters that are paid to travel the country and do this. They may have local help, but there is a hard core cadre of trouble makers at work here, too.

It may already be illegal to do this (travel from place to place making trouble) but if not, each state, county, community needs to enact laws allowing judges to increase sentencing for the professional troublemakers from outside a given community.