There are in the UK too, but much much less with time now since mass production of food is vastly more efficient and accessible. And to that point I grew up extremely poor in the 80s (thanks inflation!) and hunting with guns was crucial if we wanted to get by. I would say 90%+ of my meat came from us shooting or trapping it when we couldn't afford the bullets. Additionally we used guns to protect livestock from foxes etc. BUT... we all had gun licenses and extensive security and background checks. And we were in the extreme minority.

My point being; surely the vast majority of Americans consume what they do via an industrial food system... Having more guns than people makes zero sense unless every citizen is using AR15s in their back yards to hunt rabbits for dinner.