Sure, but that doesn't mean that any one person is protected from, say, a capricious and arbitrary manager — and it's absolutely legal. In any case, saying "a

Sure, but that doesn't mean that any one person is protected from, say, a capricious and arbitrary manager — and it's absolutely legal. In any case, saying "a company cannot fire you just like that" is patently false in jurisdictions with at-will employment, which is what I was pointing out in the OP's comment.