@pj @freemo @DutyBard Seems reasonable, although, I would posit that defensive gun use is pretty objective. If I see kids on my lawn and brandish a firearm to scare them, for me it may seem to be defensive gun use for them it is aggression.
In any case, gun violence is now the #1 cause of death among young people in the USA. Gun deaths are higher in states with laxer laws. They are increasing over time. If you compare the USA with, for example, Australia which is culturally pretty similar, some conclusions seem pretty clear.