Attacks on the 2nd Amendment and all the rest are the result of poor citizenship. We have replaced education with indoctrination in our schools, and the "citizens" they produce spring forth ready to support and vote for candidates of a certain ideology. As we old farts are dying off, they are becoming the dominate voting block. All of these issues can be traced to the simple fact that most of us who watch this with trepidation, never particularly cared about politics and government. We were raised in a time when government was hardly a blip on our radar. We laughed at political campaign shenanigans like we did when fellow students vied for the social distinction of being class president. We lived our lives with little regard for government. We didn't ask much of it and didn't care about it until they began taxing us too much and devaluing our money by spending more than they took in. Can we turn it around? I don't know...
Here's a graph of violent crime in the US (from National Review). The peak was around 1992-3, then a significant downward turn happened, especially steep from around 1994-2004. Oh yeah, that happens to correspond to the years the assault rifle ban was in effect. So if you want to throw around a correlation between violent crime and access to weapons, this chart would show that the turnaround in violent crime directly correlated with the assault rifle ban. And as you said, things seemed to be fine for the last few decades. That includes the decade that assault rifles were banned. So clearly banning assault rifles didn't lead to any increase in violent crime. In fact, it correlates with turning around a decades long rise in crime.
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