Baloney - erosion of social fabric has nothing to do with gun ownership. If it did, you'd have to ban private ownership of steak knives and baseball bats.
Israelis who need to be armed should be armed. They haven't gone around murdering willy nilly.
Nor have Americans. 2/3 of the U.S. states now have mandatory issuing of concealed weapon carry licenses to all who qualify (clean criminal record, proper training). The trend in gun crime is downward. There is no mass murder by Americans or Israelis, and lots of prevention of murder by armed citizens.