As an European citizen, I think such "sentences" are more resembling China, Russia or any other dictatorship, but not a first-world country. Do human rights actually mean something in the US?
You can have cute little Norwegian jails with light sentences when the population is Norwegians. But America is not Norway. We have a large underclass of people capable of destroying whole communities. Have you seen those pictures of Detroit in ruins? Crime in the 1970s got out of control. Stuff like this played a role in turning it around.
Does anyone have any data to back this claim up?