Not only do your jailers constantly party it up and rub it in your face, but they continuously steal land and homes from you and the other prisoners and continually violate your sacred sites and treat you as if you're not even human. Imagine that for your whole life. Slavery is similar in its total disregard for human life, but in this case they don't even want to use your labor so they have no incentive whatsoever to protect your life.