Farrakhan's flunkies showed up without being asked. Armed muslims are patrolling the streets.
A good mayor could say, "Who deputized these nuts, get off my streets!"
But Rahm is a cowardly mayor. so he welcomes them after the fact. When muslims kill innocents, blood will be on Rahm's hands as well.
The problem with the mayor's cowardice is thus: Armed muslims have established a legal foothold for vigilante justice. They had no permission. No police training. and NO RESPONSIBILITY if things go bad. Do we know the names of the Farrakhan flunkies? No. If they kill, they can just disappear and nothing will ever happen.
But this is liberal 101 stuff. They enable criminals rather than stand up to them.
As for picking on Chick Fil A, its easy to see the contrast. this little Christian business won't shoot the mayor. Hence they are the targets for a coward in office.