I’ve heard about some of these places. Restricted access to food and water, which may not even be consumable in the first place, extreme physical labor (I don’t just mean your typical ranch work), and severe corporal punishment and sex abuse on top of being unable to contact family either through a lack of a phone or fear of retaliation.
Sending a kid to work on a ranch, which is hard AF as it is, isn’t abuse, but there are correction camps which really are hell holes. I think there was one in AZ that had a documentary done about it, but I don’t recall the name of it.
There was one in Arizona which was not really a ranch at all, looked more like a homeless camp, and was run by radical Muslims, and featured terrible abuse. Made the news until the media figured out one of the guys involved was tied into top Virginia democrats.