As I've already said (in this thread) just arresting people is probably pointless, and offering people treatment for addiction, and treatment or support for mental ill health is probably a lot cheaper and more effective than just the criminal justice system.

Having said that, did you read the pinterest page? There are some rapists there; and some rapists of children; and some other sex offenders too.

Yes, I had a look. The majority appear to be drug / theft related, a much smaller portion (mostly near the top) are other crimes (more serious).

I'm not sure about the percentage of non-whites vs whites in American jails but there sure seems to be some racial bias here.