You're relying on data that isn't there to deflect away from the fact that you don't have a sound argument.
"Well, if every negligent discharge of a weapon was tracked, my assertion that Americans are irresponsible gun owners, would be true."
And we both know that's impossible. You can't base a argument on data that isn't there.
At least I made a half ass attempt to compare the the number of gun owners to the amount of average gun shots treated, provided by the CDC. And, as far as I can tell those numbers don't differentiate between accidental shootings( which is the total sum of negligences in my book), and gun shots intentionally inflicted on another person, or oneself.
So comparatively speaking, which argument holds more water?
Here's a hint, it's not yours.