I'd leave some caveats in there: people who drive under the influence and similar types who have caused serious injury or death should be considered 'violent'

I'd leave some caveats in there: people who drive under the influence and similar types who have caused serious injury or death should be considered 'violent' here, as well as those who may have merely threatened violence (car jackers, muggers) without actually causing injury. But yes, ordinary non-violent offenses are not a good fit for prison, in general.