Impossible, so don't bother trying to reduce it at all? It's impossible to get Fatty McFatFat Jr to stop shoving fries and chocolate in his face completely, but you can sure as hell get him to cut down and improve his health.
Go easy on Mr McFatFat. He has a glandular problem.
I've been on record for years supporting gun training. When I was in the Boy Scouts I got an NRA patch from people who were as stringent about gun safety as anyone you could possibly imagine.
But expecting that we will end gun violence is as silly as expecting that we will end marijuana use.
And I'll bet dollars to dog turds that there is a lot more weed smoking going on then gun violence.
Sure, but one of the two things you mentioned is much, much worse than the other.