Is Prison Just for Slavery?

I thought prison was supposed to rehabilitate people and send em back to be product members of society. But but here, it's actually just for slave labor. The work release programes that he's talking about, by the way, work for the oil and gas industry as well. And then the state takes and maintains the profits of their labor. It's disgusting. This is so focked up. I'm not being critical on as going to hell and all those people behind him. Till ye sire yo ar,. straight up, he says it like, i don't want people to come out and be released on good behavior because they are slaves. They save us money. Ye a