Earlier quoted context omitted.
There was a lot of evidence that this was how things were moving a century ago, but the predictions made at the time look more than a little bit wrong. Not only have the sons of the increasingly obsolete production line employees mostly found jobs, but so have their daughters! Trouble with breaking down jobs into smaller subsets is that you need an awful lot of robots, and suddenly the rental on those doesn't look an…
No there wasn't a lot of evidence because back then the human intellect wasn't being outcompeted by the machines. This is what is happening now. Machines are gradually moving further and further up the abstraction ladder. So unless you are aware of another human ability used to do a job it kind of stops there.
Machine learning is still unfortunately limited to very specific tasks. Even though the means through which those tasks are accomplished may be very general (neural networks, Bayesian statistics, etc...) the end result is still very limited.
Let's not fool ourselves with how far along the technology is and instead embrace it for what it is.