Could it be because these people do robotic jobs?
Chefs do “robotic jobs” repeatedly creating the same end product. Would you be comfortable if the person who prepared your Michelin course dinner was forced to urinate in a bottle while they did it? Why are we ok with treating human beings like this, simply because we do not romanticize the task of sorting and moving boxes.
Modern American safety net is far from perfect, but it does a pretty good job making sure people don't die from hunger not freeze to death.