i think there should definitely be something more after prison – mandatory halfway housing, mandatory counseling, job placement, and the like. it would cost a lot – but i can only imagine it’d be less than the cost of prison.
for people who are harming others because of their own harm – maybe for some people that can be fixed. but, prison alone doesn’t seem like it will fix anything except keep somebody off the streets for a few years.
for this guy – he should also probably be banned from youtube and any other revenue generating social media sites for life.