Once the moochers and gangstas mob up and head out of the urban core in large Wolf Packs it's going to be tough for any of us they can find.
Defense against such marauders is but one side of the coin. The other side of the coin is to take the offensive.
Hunt them down, and they'll head elsewhere where they're not hunted. Those that are not smart enough to do so become the live fire training exercises, aka NEPUTS.