What you say is true, and I am 100% aware that many people are trapped in their jobs. In the U.S. the consequences of quitting and losing e.g health insurance is real. If you have underlying medical conditions, one can feel ensnared, trapped, hopeless, miserable and desperate. These are all negative consequences of a system that exploits working people. But this is also FAR removed from slavery. An actual slave would give anything to have that job, however difficult. That is my point. We can use better words to describe the situation.