Well, we tried pulling back policing and slap-on-the-wrist prosecution policies and violent crime is surging. How long until friendship, positive energy, and rainbows kick in and bring crime levels down? There are more constructive solutions to the prison problem--notably solving frontend problems + prison reform, but locking up violent offenders is part of "solving frontend problems" so we can't exactly stop doing that and hope to make up the difference by investing in after school programs. Any serious solution to crime has to be "lock up offenders and X" rather than "letting offenders run rampant and X".