Earlier quoted context omitted.
Quote from this website [1] ===== “Gun violence is America’s most preventable disease. I say that because it’s almost entirely preventable and the numbers of people affected are so high.” Judy Schaechter, MD, MBA University of Miami Leonard M. Miller School of Medicine ===== [1] https://www.aamc.org/news-insights/disease-gun-violence
You could say a similar thing about car accidents. Does that make car accidents a disease?
Additionally there are two federal agencies (NHTSB and NTSB) that regulate the various elements of vehicular safety at the national level, on top of state DMVs and transportation departments. By comparison, the federal BATFE is basically hamstrung on firearms regulation, and outside a few States so are its state level equivalents.