People aren't "free to leave the job at anytime". If you are working a shitty job, it means you aren't able to find any better, and if you stop working, you are fucked as you can't pay the bills and basic needs. It's subtle slavery, while Mr King has a perpetual luxurious holiday. It's a joke.
So I suppose you just ignored 95% of what I said and continued using the ignorant term.
You do not have to take part in the American Way. Capitalism is not everywhere, there are other societies for you to choose from. You can leave. Go join a different society, we'll show you the door.
He has pointed an objective fact: You cannot leave a job that will leave you without your fundamental needs covered, because your biological preservation mechanism is telling you to not stop working because if you do, you'll not have food, water and shelter, and you don't want this. You are not free to like this situation, any sane mind doesn't like this. Therefore, under no alternatives, you aren't free to leave your job. This is a fact, and you seem upset at this fact.