Well-said and well-stated. I am in total agreement and can't improve upon what you wrote.
I also have thoughts on why there are so many more school shootings these days than in the past but that will need to be for another thread. Maybe it's own thread.
Before leaving that thought, I posted a largely empirical article last year on school shootings. In reality, school shootings, while awful and certainly worth examining to understand and minimize, aren't statistically eventful.
A time-series analysis to determine empirically if they're more prevalent today vs yesterday would be fruitful (someone has to break out their econometrics textbooks).
The "why" question remains a biggie. I suspect there are many "whys." FR has a way of bring out the best minds on a subject; if I find a relevant, cogent article on the topic I'll ping you. I look forward to reading folks' thoughts.
In a nutshell, I believe that school shootings have increased in large part due to the measure of fame (or infamy) that is gained by the instigators of them.
By and large, the school shooters end up being kids (or young adults) who are socially awkward, even socially shunned or bullied by their peers. This is their way of lashing out. Getting back at their bullies in some way while knowing (even in death) that they will be remembered and be infamous due to their action, which they know will garner national media attention.
Social media also feeds into this. It used to be that bullied or socially shunned kids could just switch schools or move out of town and more or less get a fresh start in life. Not so in today's world. Your social media profile follows you wherever you go. These kids feel that their lives are ruined forever. I don't think older people who grew up pre-internet realize just how important a role social media plays in the younger generations. If you or I get banned from Free Republic, we shrug and move on to other things. But for these kids, getting "cancelled" or mocked on social media is like a death sentence.
Then you have video games, most of which are violent. I truly believe these are harmful for kid as it desensitizes them to violence. They are also very addictive, especially the online ones, where lack of participation can hurt the scores of you or your "team". There are many Freepers who are gamers themselves and they will defend the playing of video games - which may or may not be a harmless diversionary pleasure for adults. But I think they are inherently harmful to kids, not only because of the violence but because of their addictive nature. They become so addicted to video games that not only does their education suffer but their social interaction with real people also suffers, which accelerates their social isolation, leading to them plan out and execute their own plans for violence.