Interesting...I guess someone pulled these people off the street, at the end of the barrel of a gun, and stand over them with the same gun FORCING them to work for Amazon? If the conditions are that bad, QUIT and go to work for someone else. No, they stay. Why, the pay is probably better than they could get anywhere else, plus I'll bet they get some sort of benefits package, stock, or something that makes it worth the "pain and suffering". Plus, most of these "terrible working conditions" are just another attempt to UNIONIZE the work force. Do that, and a few things happen. 1. The workers get more money. 2. Their productivity will GO DOWN.
Again, unless someone his holding a gun to their heads, there is NOTHING keeping these people from just walking out, if it's that bad. If enough of them were to quit, either the pay would have to go up, to attract people to work there, and or the conditions would change.
THAT is how it is suppose to work!