In my travels and readings I've found that countries have distinct tendencies toward violence that clearly emanate from their culture, not from objective markers like poverty, income, etc. For example, in the 1990s Ecuador had the lowest homicide rate in the Americas, despite often crushing poverty. In the early 2000s there was a surge of Columbian immigrants in search of work. Columbian culture was far more violent than Ecuador's, much like the U.S. (as opposed to simply a consequence of organized crime), and rates of violence soared. Not because the Columbian immigrants were criminals, but because those who resorted to crime did so in a more violent manner.
But my point wasn't to say that the U.S. is unsafe. Just that what makes a culture (and people) violent isn't superficial behaviors. Guns don't make America violent. America loves guns because we're a violent society. To be clear, we love guns not because we feel we have to defend ourselves, but we because we fetishize the idea of defending ourselves amidst our own violence. Take away the guns and homicides might drop, but the tendency toward violence will simply remain latent, and all the other manifestations of that culture of violence will remain. It doesn't mean we can't become a safer, better society. We have and we are. We'll just follow a different, often trailing path as compared to less violent societies.
If we want our kids to internalize a different set of norms and expectations, it's these subtle cues that we have to watch for, not the artifice. Kids can see through artifice, at least to the extent they haven't internalized the norms the artifice reflects or disguises. They don't need to be protected from video games or gun culture or gore; they need to be taught to recognize our society's preference for conflict over cooperation, for winner-take-all strategies, rather than to let it seep in quietly. Those cues are subtle and pervasive and to some extent exist even within, e.g., Disney's otherwise saccharine world. For example, Disney's woke culture messaging (as well meaning and useful as it is) reflects the narrative of two groups pitted against each other, one right and one wrong, where the latter either needs to be vanquished or converted. Unlike in traditional fairy tales, in American narratives the boogeyman is your nextdoor neighbor, not a troll or a witch. We think we're sending sophisticated, moral, good messages, and we are, but it's not all we're sending.