The economy was not better in 2007-2009 yet the gun deaths were still very low. They started rising significantly when the economy was booming in 2015 and beyond.Economy was better then too, look at what's happening with the stores in cities, people robbing peoples front porches. Then that behavior gets dismissed as people being hungry, or, we can't demonize the "kids" . There need to be tighter gun laws, but more on the if you use one in a crime, you go away for 3 to 5 years minimum. Make room for them by decriminalizing drugs.
I don't disagree with stiffer penalties for using a gun in a crime but that falls far short of what is needed to start bringing gun deaths down to previous levels.