True, toy guns will likely never kill anyone unless they disassemble them and then choke on the pieces. Even more insidious and dangerous though, are the perceptions they create among youngsters who are just learning about firearms. What we learn first is what we tend to remember, and what we eventually become. If we learn that firearms, even toy firearms, are fine to use in this manner, then we tend to not take the 4 rules as seriously. As a result, as well, we tend to view death as a temporary abstract condition, not a permanent one.
There was a time that I grew up in where almost every third grade boy got a .22 rifle for Christmas. The real question was whether it would be a Savage, Mossberg, or Marlin, not whether you would get one. Often, boys carried these rifles to school, locked them in their lockers, and then took them home afterwards with no incident. Know what? We all felt safe with boys doing this too. (Of course we still sat under our desks in case the commies dropped the A bomb...)
Back then younger boys used pellet guns and BB guns to hunt song birds. I did as well. Killing your first beautiful bird is a sobering experience. The different emotional reactions to the songbird's death showed us all the differences within ourselves, and often broke up friendships. The birds did not die in vain, however. The one inescapable fact that each bird's loss of life taught all of us, is death is permanent. Thus, when we received our "real" rifle, we knew what we held in our hands, and what it could do if used improperly.
All people took more responsibility for what they owned and for what it could do back then. People took responsiblility for their possessions, and the damaged that those possessions created, if any. Parents took responsibility for their children. Yes, boys played army, but the kind of misguided nihilistic behavior displayed in this video was rare. When it reared it's ugly head among children, they shunned it themselves. They were taught to do so by parents who understood the dangers, and not by a pop culture that glorifies violence. This is why I am opposed to toy guns being used in this manner.