Let's also not forget that cars and boats and table saws, while they can certainly be dangerous, have intended purposes which are not harmful, and are actually beneficial.
The only purpose for a firearm is to put a destructive and deadly hole in the thing you point it at. Hunting, sure, is beneficial to the hunter. Handguns are not used for hunting. Absent the odd "defending yourself from a bear or moose with a large caliber handgun," handguns are for killing people. Essentially all handgun usage is harmful by definition.