One solution is to follow the northern European approach and remove criminals from broader society and teach them how to live in homes together with basic life

One solution is to follow the northern European approach and remove criminals from broader society and teach them how to live in homes together with basic life skills and responsibilities (with no escape from the island). The US could set up an internal Australian where people are sent to learn to live proper community life away from distraction. This of course would be after institutionalizing the mentally ill.