Cars kill many more people than guns, but since cars are a social norm there isn't any illogical stigma surrounding their use.
Just in case you care (most recent year available; 2004):
Unintentionally killed by firearms: 649
Unintentionally killed by vehicles: 43,432 (66.9x more likely)
Unintentionally killed by poisons: 20,950
Unintentionally killed by falling: 18,807
Unintentionally killed by heart disease: 652,486
Unintentionally killed by flu: 59,664
So, what does this say? This says that the type of firearms use that you find wrong is nearly 6700% more safe than you riding in/driving a car, more than 3200% more safe than just living your daily life (and accidentally poisoning yourself), and 2900% more safe than living your life anywhere there is a potential for falling (stairs, etc). You are also over 1000x more likely to just keel over and die from heart disease and 92x more likely to be killed by somebody else passing the flu virus to you.
Your argument is just not logically sound. If you were to ban anything man-made that has the potential to kill, you'd have to live a very spartan life. You'd have no objects weighing more than about 2 ounces (no tv, no fridge, no microwave, no doors, no hammers, no screwdrivers, no hair curler, no blow drier, no shampoo bottles, no bathroom scale, no wall clocks, no camcorders, no bottled water, no flashlights, no vehicles, no mailbox, no computer, no speakers, no staplers, no saws, no drills, etc...you get my point). Almost anything of any substance can be used as a weapon to more easily kill another. We've been doing it as a species long before recorded history. You might say, "But who would kill somebody with a toaster?" Nobody, usually. That doesn't mean you cannot or it would not be a useful weapon, however. A toaster or a microwave is just like any other object when a human is not around. It doesn't attack anybody if it is not thrown, kicked, or used as a club. A firearm is ABSOLUTELY no different. It takes a person with the conscious intent to kill or incompetence to load it, cock it, aim, and pull the trigger when talking about murder. By itself it will do nothing at all. In your hand, it will do nothing at all. You must work it yourself. Is your intent good or evil? It's like those moral crusaders who want to prohibit people from using curse words. You can say anything you want, just replace curse words with these fun alternatives: "Shut the front door!" or "That's bullshoot!" They don't care about or try to change the underlying behavioral problems that leads somebody to use that language. They just care about the means by which the message is delivered--the words. They're censoring the sequence of sounds instead of the information/message/emotion being conveyed by the person speaking. Likewise, you don't seem to care by what means somebody kills another. Let's just ignore that, shall we? No. Guns don't do jack malarkey. If you want to assign blame and prohibit murder (accidental or not), blame the right thing. People kill people, and that's the bottom line.
