... but just look at the price your country is paying.
I don't want to take away from the utter sadness I feel for the children involved in this horrific incident, but on the bigger question there are multiple and overlapping issues, one of which I'm not sure gets much attention because harsh backlash to the idea is likely and understandable. What am I talking about?
For the past century the USA has been a world guardian of sorts. Think what the world would look like had not Germany been defeated... twice. And what about Japanese aggression in the mid-20th Century?
The boys who fought and died under the stars and stripes were nurtured by a country with a rich history in having and using firearms. Had not so many of these boys been raised around firearms I'm not so sure the 20th Century would have turned out as it did. What I mean to say is, things could have turned out far worse.
I think the day will come and should come when access to firearms in the USA is much tighter than it is today. I don't know when, and I don't know how, but I think the day will come, and probably the result of the whole world advancing socially and not so much just the USA. For one, if I had reasonable assurance that my family would not need to have firearms available for self-defense (not to mention hunting) I'd happily give up my firearms right this second if doing so would stop the madness of human-on-human violence I see.