Earlier quoted context omitted.
7 years for something that would have probably gotten him 6-12 months in Europe/Canada. When are the Americans going to realise you can't punitively punish someone and not reap of profound negative consequences (re-offending, home-breaking etc.).
It's not just punitive. Some (not all) people are broken, unfixable, and dangerous. The idea is to just isolate them from society.
Yes, in many cases because of their exposure to our prison system.