Why do we have violent criminals? Also, there actually aren't that many versus say gun sales. Can we push the number of violent criminals to 0? Maybe not, but

Why do we have violent criminals? Also, there actually aren't that many versus say gun sales. Can we push the number of violent criminals to 0? Maybe not, but we could greatly reduce the numbers with more intelligent social policies (in the US or Canada, say). The wild-west mentally and the fact that it has been co-opted by certain political groups actually leads to more crime and more fear (which sells guns and regressive politics). What if no one lived in a state or neighbourhood so shitty that they felt the need to arm up? What if they had not been indoctrinated since birth with a wild-west mentality that linked gun-ownership to freedom? The "only criminals will have weapons" argument is a really low-quality surface-level distraction from getting to grips with problems we could actually solve.