Okay so I'm genuinely curious but I remember a debate around this subject that had very conflicting data /widely contradictory conclusions and I've never gotten to the bottom of it. So I was wondering:

Is it true that people who are convicted of violent crimes more than once usually proceed to have very high recidivism rates until they get in for good ? And that those repeat offenders make up for a very disproportionately huge part of the total violent crimes? That's maybe due to how the prison system perpetuates the cycle and need for violence especially for gang members, but idk if that explains why other violent criminals such as rapists and domestic abusers also (supposedly) reoffend more and non violent criminals in the same prisons less.

Again, I'm probably wrong but the claim was that if we isolated those repeat violent offenders from society we'd basically not only see a massive drop in violent crimes but also almost certainly prevent crimes that they are almost guaranteed to commit due to their recidivism rates. Obviously that ignores the moral argument for aiming to rehabilitate and reintegrate (which are both goals that I fundamentally support, except in rare cases ) but It would confirm a personal biais because I also tend to think based on personal experiences that some people are just violent and have a lot more violent impulses/snaps than normal people do.