[rossdavidh]

While I certainly agree, the historical record suggests that unionization often requires a certain amount of labor scarcity in order to happen in the first place. Of course, enough scarcity and the workers won't see the need, perhaps because there isn't any, but in cases of superabundance of labor it is extraordinarily difficult (usually impossible) to successfully unionize.

I certainly agree that unions can make a big difference in the intermediate case.

[DangitBobby]

You might be right here. In an ideal world, limitations on unpaid overtime would already protect these workers, and then there would be little or no perceived benefit for the unions they are talking about.