Ever seen someone doing their "unskilled job" all their life? It's just fucking magic!
The truth is that capitalists hate skilled workers, because those workers have bargaining power. This is why they love the sort of automation which completely removes workers or thought from the equation, even if the ultimate solution is multiple times more expensive or less competent than before.
Nothing is more infuriating to a boss, than a worker that can talk back with experience.
Well it was the only thing that came to mind as an obvious one. I'm sure there's other jobs out there that don't require skills.. but a freaking clown making animal shaped balloons has more skills than a sex worker.