You’re assuming that the point of the American justice system IS to refrain and rehabilitate. It’s not.
A for-profit prison system seriously is low-key the most fucked up thing in a country full of fucked up things.
American prisons exist to make a profit for their investors. They do this by both government subsidies (which are calculated per inmate) and using the prisoners as cheap labor that they legally only have to pay pennies.
The system NEEDS a continuous influx of prisoners (slaves) to remain profitable. Rehabilitation is anathema to that.
Literally everything to do with modern life.
I’m not saying that we should all pull a BSG and give it all up to be cavemen again.
But our bodies most certainly didn’t evolve in order to sit at desks, stare at screens, communicate without physical contact, and avoid sunshine like the plague.
We evolved to be active, but developed the technology that allows most of us to be sedentary 99% of the time, and then we wonder why obesity and chronic back pain are pandemics.