Those that are left will be working twice as hard for the same damn money. That's happening everywhere.
Yes, that IS happening and very little is being published about it. It is happening in my job AND my wife's job. Little by little, the supervisors put more and more on us and yet the pay does not increase. I believe a LOT of people are severely frustrated by that specific problem at work (in addition to all of the others).
The answer is not unions stating exactly what someone can and can not do at work. A big part of the problem is excessive taxation and regulation driving up overhead costs causing supervision to look for ways to cut cost -- ergo, squeeze more labor out of the present employees for the same money. I simply don't believe it is always the employer trying to explicity take advantage of the employee, but rather other mitigating factors leading to the necessity for cutting cost.