Most fast-food workers and other low-level workers probably do hate their jobs, and for good reason. They're called "work" for a reason.
But we're supposed to be highly skilled professionals here. Do most doctors hate their jobs? I sure hope not, or else we'd have all kinds of problems in the healthcare industry (and I don't mean the insurance/payment side of things). Can you imagine a surgeon hating his job? That's a recipe for disaster.
So no, I'm sorry, I don't buy this "everyone hates their job" tripe. For shit work, sure, but not for highly-skilled work. I think that's mostly unique to tech workers.