Yes, this will help IF NRA (for example...) will act responsibly.
Looters are losers and not surely law-abiding citizens.
Stress the fact that CRIMINALS will ALWAYS HAVE GUNS, despite any attempt of any govt. to restrict RKBA.
Stress the fact that Authorities, in such big disasters, cannot very often put orders and make interventions to save citizens lives. NO is not Baghdad, but ANYWAY looting and armed crime is happening under police nose.
Stress the VERY FACT that in such circumstances the only one that can survive to armed looters is ARMED LAW ABIDING CITIZENS.
Instead of fighting Law Abiding Citizens, Police and Govt. should fight LOOTERS and call to COLLABORATE the armed Law abidign citizens.
Putting this clear and simply inside public opinion. Repeat until every american gets the message loud and clear. It will work.