At the same time, I wish to point out most other prison systems in the world are similar or worse and suspects before they become prisoners have fewer legal rights afforded them.
That said, the catch-and-release as well as the watch-and-do-nothing approach we're seeing in some places are aggravating crime and they are not doing anyone any favors, the criminals or the victims.
This might be true but I do not think it’s true of most peer countries (Western Europe, Canada, etc). I do believe that US prisons are among the least humane of this group as well as the least effective at rehabilitation. Again, this is not to say that those other systems do not have problems, just that the severity of the worst abuses and the extent of abuse in general is worse here.
> Prisoner rehabilitation does not work, says former prisons boss
> Sir Martin Narey says focus should be on treating inmates with decency and dignity
https://www.theguardian.com/society/2019/oct/29/prisoner-reh...
> So far, prison inmate rehab isn’t working
> California’s prisons are supposed to be rehabilitating inmates, not merely warehousing them, but a new report from the state auditor says it’s not effectively reducing recidivism among those released from the system.
https://calmatters.org/commentary/2019/02/so-far-prison-inma...
And since you linked Amnesty, here’s their report on solitary confinement at ADX Florence: https://www.amnesty.org/en/latest/news/2014/07/usa-prisoners...