Seems to not be supported by the evidence.
States that do not allow unlicensed carry of handguns have lower per capita gun death.
https://worldpopulationreview.com/state-rankings/gun-deaths-...
States that do not allow unlicensed carry of handguns have lower per capita gun death.
https://worldpopulationreview.com/state-rankings/gun-deaths-...
A gun is far more likely to kill a member of your own family than it is to protect a member of your family in a violent altercation.
Furthermore, evidence from the lowest crime and gun death countries around the world seem to indicate the gun ownership is strongly negatively correlated with gun crimes and gun death, unsurprisingly.
It's strange that folks epistemic horizon ends at the border.