If the detainees are forced to do hard labor unto death, that would be identical to Nazi slave labor camps, but putting people in harsh prisons without parole is not an extermination camp. It's like the cheapening of the word "genocide" to mean any kind of brutality, human rights violations or war crimes someone wants to use the word for. If "trying to wipe out an entire people by killing them off" isn't what "genocide" means anymore, we need a different word that does mean that.