I've fired thousands of rounds in recreational contexts. I've been to several cowboy action shooting matches, where dozens of people come together to enjoy shooting firearms in friendly competition. While I've never actually attended one, there's a thriving "three-gun" scene in which people do the same type of thing but with modern firearms.
So, from my perspective, saying that "there are a few other uses for guns besides killing" is at best coming from a place of ignorance about how guns are actually used. Your choosing to compare recreational firearm usage to things like drag racing on public streets and surfing on hurricane swells seems a bit disingenuous, because you picked one example that is illegal and stupid and one that's legal but even more stupid. A much better comparison would have been, say, playing sports: people get injured playing sports all the time, but playing sports is not something generally recognized as foolish or stupid to do. I've spent more time at the range than I have at sporting events, but I've still seen more people injured through sports than with firearms. Should we ban football because the players often suffer brain trauma? If public safety is the central issue, why should I be allowed to scramble my brain on the football field but forbidden from enjoying a harmless afternoon of blasting steel in a gravel pit?