"Our new economy is shrinking because technology leads to efficiency over growth." Anyone who wants to make the claim that technology is net killing jobs has to be prepared to answer the question: why now? Technology has been killing (but not net killing) jobs for centuries. It's possible that technology could start to net kill jobs. But why now, when it hasn't in the past?
If humans were required to learn, say, programming in a week, they would completely fail. Learning an industrial job in more than a decade to transition away from farming is much easier.
It could be that the skills needed to be employable are too difficult for people to learn in the time available. I think this learning time is fluid. It could be a function of cultural expectation of self reliance, for example.
What is funny is that plenty of roboticists point to an inflection point in the future when service jobs become displaced, which will dwarf these problems. The change will be bigger and the time to adjust will be smaller.