Don't need to look any further then the Warsaw ghetto uprising in WW II. the populace, armed with a handful of smuggled guns[aided as the uprising went on with arms captured from German soldiers they shot] put up a resistance so fierce the Germans gave up on door to door foot solders and where forced to bomb the city to rubble. This was against a confined group of people just one step from a concentration camp
Now imagine a similar scenario in America against a heavily armed citizenship[ at lest in the free states.]
riots? LA happened, katrena happened and there will be others, bank on it.
The birdogs of this world are feeling safe with calling 911 for a cop 25 miles away and going away fast.