Like most of these kinds of problems, the answer can be boiled down to a simple commonality: The people who stand to lose the most from things changing for the better are the same people who have the most power to influence the outcomes. The only thing that can counter that is a strong labor movement.

Now, there is a more complicated question to be asked about why US labor movements have been less successful than their European counterparts, but that I don’t have an easy answer for.