No. A completely true statement that is backed with the weight of evidence.
After the Port Arthur massacre in 1996, the Australian Government via a buy back scheme took 700,000 guns out of society.
News | The University of Sydney
The authors conclude that "The Australian example provides evidence that removing large numbers of firearms from a community can be associated with a sudden and on-going decline in mass shootings, and accelerating declines in total firearm-related deaths, firearm homicides and firearm suicides."
Gun deaths halved in past 10 years - www.theage.com.au
After the massacre, tough gun laws were enacted across Australia, specifically targeting military-style weapons, which resulted in hundreds of thousands of weapons being destroyed.
The number of deaths caused by firearms dropped almost 50 per cent between 1991 and 2001, with the biggest yearly fall in deaths coming after the 1996 Port Arthur massacre.
Australia which has far tighter gun control and which engaged in a mass buy back has a gun-related death rate which is 14.7 times lower per 100,000 people.
Having been down this road before, I can't actually make a convincing argument because it isn't accepted. What is accepted and apparently acceptable is 14.7 times the number of dead Americans as a result of guns per 100,000 people. What's also accepted is a health care system which has to cope with accidents and injuries up and down the land. America as a nation has found it acceptable to wear these costs through increased health insurance premiums.