Yes... That's how technological progress works? Countless millions of jobs were lost during the Industrial Revolution, but in there place were new jobs often requiring new (and more) skills. The pace of that turnover has been increasing since the invention of the wheel, one problem now is that we've crossed a threshold where the rate of change is no longer intergenerational but intragenerational.
> I don't know if there is some kind of steady state sustainable economy where enough people have meaningful productive outlets (aka jobs w/o coercive bosses) and we as humans are not extracting or destroying more of the non-human planetary resources than can easily be renewed.
This doesn't exist and has never existed; it's only that the rate of change has come to a point where it's now easily perceived (and financially felt). I would even argue it will never, and should never exist. Should we lessen the impact that this rate of change can have on people's lives? Yes, with better access to social services and education. Should we lessen the impact that the global economy has on the environment? Yes. Should we strive towards some steady, and therefore stagnant, equilibrium? No, absolutely not.
Anyway, the point is that every small bit of technological progress fundamentally changes the economy and that inevitably changes what jobs are needed. Jobs are created and destroyed, it's the nature of progress.
Many human and non-human lives have been sacrificed at the altar of the "cult of progress" and I don't think we should be so willing to think because something has happened for the last 100-200 years (rapid technological change and exponential exploitation of natural resources) that it can go on forever.
But a coal miner learning a new skill/new skills is a lot harder for him than just getting his old coal mining job back... Unfortunately one of those (well maybe both of them) isn't going to happen.
This is just as true for steel manufacturing.