But you're at one of these institutions (middle through undergrad) for 11 years? Your probability of being at one of these during a shooting compounds to 90.86%.
9-in-10 people and their friends had a nice time, but that remaining 1 was there when four or more of their school were gunned down.
I don't disagree that the Constitution gives Americans a fair whack at freedom, but it also frustrates democracy. If a clear majority wanted to change things, even incrementally (background and mental health checks, storage laws esp child-access, restricting higher form assault weapons), overcoming the 66% bar really makes progress on [inexplicably] partisan issues like this impossible.
You've got to weigh up what this law was designed to do, against what it's permitting today. I think it's obvious we come to a different result when we balance that equation but I'm not deaf to your views either.
(Edit: Important to note that 434 is the mass shooting number. It's just 1% of all gun violence in schools.)