Are you saying that Walmart's practice of locking in employees and threatening them if they attempt to leave (even when in need of medical attention) is not exploitative?
This is already illegal, but nice job moving the goal-posts.
It is illegal, but it still happens, and the fact that it still happens at one of our nation's largest employers when some of the biggest tragedies in labor history happened as a result of lock-ins is horrifying to say the least. My home town is basically dominated by a Walmart. It is definitely the largest employer in my town. Several high school classmates of mine work there and had to take an anti-union indoctrination course, in addition to taking various forms of abuse including being forced to work off the clock. And as someone else mentioned, quitting and getting another job is just not always an option. Small businesses close up in towns dominated by Walmarts, and in this economy quitting a job that sucks is no guarantee you will be able to find another one. I am usually opposed to anecdotal evidence, but based on the plethora of lawsuits surrounding Walmart for these and other tactics, I do not believe it is entirely anecdotal.