But they do - in the modern version. Just like we have - here in my native Germany in a very big way over the last two decades - made actually employing people, as too inflexible and too expensive, a thing of the past for hundreds of thousands, and instead lend them out to companies, you don't need to deal with the hassle of actually owning someone. After all, what does any slave owner actually want? Not the slave, that's just "costs" and a lot of effort (infrastructure, overseers, security etc.). No, all they want is their labor. And that is exactly what those prisons sell, no? All the benefits without the disadvantages in one convenient cheap package.

I have no idea why you focus on the unimportant part of slavery, the one that was always inconvenient for the slave owners, the one that only contributed to the "cost" side of their business.

I would also like to take the liberty of pointing to this page about "Disputing Definitions" when trying to dissect some non-existent god-given very exact and always valid no matter the changing context meaning of some word: https://www.lesswrong.com/posts/7X2j8HAkWdmMoS8PE/disputing-...