There's seems to be some kind of American myth that "at will"-employment is for the benefit of the employee, or in the very least of equal benefit to both parti

There's seems to be some kind of American myth that "at will"-employment is for the benefit of the employee, or in the very least of equal benefit to both parties. That may be true for educated middle to upper class professionals, without children or other dependants, but I have a hard time seeing how it benefits the average worker.