There are almost always two sides to everything, and people with the "big ideas" are often blind to the downsides of their creations. Sure, the promoters of automation realize people will be out of jobs... BUT they have an answer "retrain them."

But that's not an answer. Take the trucking industry. Self-driving trucks will do away with three million jobs. We don't need three million truck drivers who have learned to write code, to work in an industry that already has more coders than it needs.