Forced labor is not exclusive to private prison facilities.

Our nation incarcerates more than 1.2 million people in state and federal prisons, and two out of three of these incarcerated people are also workers. In most instances, the jobs these nearly 800,000 incarcerated workers have look similar to those of millions of people working on the outside. But there are two crucial differences: Incarcerated workers are under the complete control of their employers, and they have been stripped of even the most minimal protections against labor exploitation and abuse.

https://www.aclu.org/news/human-rights/captive-labor-exploitation-of-incarcerated-workers

The primary “benefit” is to drive corporate food profits for shareholders.

The reporters found that prison labor is part of the supply chain of companies spanning across nearly the entire food industry, including grocers like Aldi, Costco, Kroger, Target, Walmart, and Whole Foods; restaurant companies like Burger King, Chipotle, Domino’s and McDonald’s; and industry conglomerates like Cargill, Coca-Cola, General Mills, Pepsi and Tyson, which together own such a large variety of brands that they are nearly impossible to avoid in retail settings.

https://truthout.org/articles/major-brands-like-mcdonalds-kroger-and-coca-cola-linked-to-forced-prison-labor/

It really is unfortunate how jacked up their system is.

Check my other comment for the 13th amendment. Keep in mind, I didn’t write the rules, nor do I particularly approve of certain rules such as that.