The fact that, in the past, the economy created new jobs and new sectors that the majority of people were capable of working in does not guarantee that it always will. Nor when it does is that any consolation to the people un(der)employed for years on end or sometimes for the rest of their life.
In the long run, we are all dead.
The Industrial Revolution and its consequences are a hiccup in human history. Human history is a blip in the world's history. There are no laws when it comes to this. Unless you can provide some other very good reason for believing that more jobs, and good jobs, will be created than those are destroyed, I will have to doubt it given the evidence before me.
Indeed, even many 'good' jobs are actually economically unproductive and totally unfulfilling make-work. Today's situation is much worse than it appears at first glance.