Australia didn't say "no more guns" they said certain guns are no longer allowed. Still lots of guns in Australia.
Over 750,000 people own guns in Australia.
So you have almost a million people capable of mass murder, this guys comments only play to the actions of the vast minority of gun owners. No matter if you only have 1 gun in the country there is still the chance for evil.
Hunters are not immune to evil.
"Anarchism is not a romantic fable but the hardheaded realization, based on five thousand years of experience, that we cannot entrust the management of our lives to kings, priests, politicians, generals, and county commissioners."