I think you're missing the point. Legal gun owners in cities also aren't the overwhelming source of violent crime including crimes committed with firearms. Regardless, individual firearm ownership, including the natural right to proportional self defense, is protected by the Second Amendment of the United States Constitution. Civil rights protections for self defense are considerably less in Australia than in the United States and rely on common/case law rather than being constitutionally protected. I doubt most Americans would prefer to switch to the Australian model given the differences in our population demographics. I'd prefer to retain the option to keep my pistol and decide whether to carry it while I drive. Your government doesn't allow you that choice.
Its not that our Government doesn't allow the choice - the majority of Australians voted for the Liberal Party here (right wing similar to Republican Party) who brought in gun buy back laws and tougher ownership laws after the Port Arthur Massacre. 35 dead, 23 wounded in 1996.
That occurred a few years after the Strathfield Massacre in 1991 - a Cabbie went loco at a shopping centre close to my place, a loner who I learnt later had gone to my old school - his AK47 killed 7 and injured many more.
So a couple of terrible incidents galvanised lawmakers into action, They didn't want to follow the US path of easily accessible automatic weapons and the horror they can wreak.
Those who want to own and use guns lawfully go through a very involved process which takes many weeks before the gun is delivered.
The result is approaching what FauxKnight advocates. A better understanding of guns facilitated by by gun clubs that also provide the required secure storage of handguns of members away from urban domestic addresses.
Being able to buy guns over the counter with unlimited ammo would be the first thing to change. It cant happen here unless you hold the highest security clearance.
People simply cant carry a handgun without being a Cop or Accredited Security Personnel. If you get caught with one its a criminal offence and you go to jail.
Its kept a lid on the crazy shootings we hear happening over in the US