Unfortunately people want quick-fix solutions that mollify their conscience too. It's become ideological.
In SF the climate is such that officers only pursue the most egregious cases where they think their work will have results. They know the DA will pull punches and drag their feet and drop lesser cases so they don't even bother. The DA often times pushes the victim to agree to restorative justice. It's not a deterrent.
Restorative Justice can work in some special cases. We can work to make prisoners more ready for the workforce when they get out. But we need lots of support in the way of social pressure and also some brainwashing/reconditioning. Most criminals will not want to go through the effort of turning things around, unless you change them via stick and carrot. It's hard to change course. It's hard to change course for anybody.
Now, some people are salvageable. We have to get better at spotting potential and providing tools and support for those people who want to change for the better.