Are you willing to hire functionally illiterate people to do tech support? Of course not. It's not just a question of willingness to work; the overlap between people who can do intellectual work for low pay and little supervision is much, much smaller than people who can work physical jobs in a highly supervised environment.
At some point capitalism has to reap what it sowed. Deskilling peasant labor into manual-worker labor was an essential component of capitalist industrialization, but it creates a population that gets totally screwed over by capitalist post-industrialization.