Correct, with the technological development we are experimenting it is a mistake to think that just because one or two generations ago a person could work for 40 years on the same business doing the same work during that time then things are going to remain the same, people will have to adapt and they will have several different occupations during their lives, whether this is because they simply switched career paths or because what they did before was not profitable anymore or because now their jobs have been automated, the economy will require that we are able to adapt ourselves to the best of our ability, and the ones which are the best at this will reap the greatest benefits.
Yeah, still boils down on how someone will adapt himself to the current situation and still survived. We need to reinvent ourselves and humans are good at it, maybe we need to switch careers, learn new tools and tricks, get out of our comfort zone.
So I don't think this is madness, this is just the time that we are living in right now. I know it's hard in the beginning, but again, humans are so resilient throughout history, if not then we're already instinct centuries ago. My point is that we shouldn't give up and complain but instead uses what resource we have improved it to reach the next level.
That is simply the way the economy works, before electricity and light bulbs became common there were some jobs that required people to light kerosene lamps on the street, those jobs disappeared but then light bulbs needed replacing so those people simply adapted and did a new job, and this is the same, jobs that we re fundamental get automated and now you need to do something else, however it is not as bad as it may seem because as jobs get more complex if you can do them then the pay will be better as well.