How does any of that relate to most gun owners being responsible people? Folks really suck with trying to ignore the absolute numbers and try to use relative comparisons to serve as justification.
The VAST majority of gun owners are responsible and never experience anything like this. Using parents who left their toddler in the car buying fireworks at night is an absurd representation of your average gun owner. Gun owners like this are the exception and the numbers aren’t hard, you’re talking about less than a hundredth of the percent of the population.