I agree with this 100%, but the last paragraph is worded poorly, and almost guaranteed to attract debate from both honest and bad-faith dissenters.

Restated:

Throwing people in prison does not fix the problem. We have tried it for a long time at various levels of intensity and it has provably not worked, and no additional level of intensity has improved things. We can't _just keep doing this_ and expect that at some point things will get better.

We need to address the root causes that lead so many people into situations where they find it reasonable or are desperate enough to commit those crimes. That's how you make a dent in this problem, and that's what we should work on transitioning to. Fix the top of the funnel, and you won't have nearly as many concentrated violent problems down at the bottom of it to deal with.