Well you've changed the assertion a little bit there. I shared that one particular technical innovation shifted the mix of jobs towards more skilled jobs. That doesn't say anything about any individual person of course.

Your statement says that "people were made obsolete", which I take to mean that some people are individually unable to switch to the more skilled jobs.

I think the effect on current employees due to technical innovation is a reasonable issue to be concerned about but it's not the same phenomenon as the job "mix" changing towards more skilled jobs, even some that didn't exist before. The two phenomena aren't mutually exclusive either.

We don't have too many stagecoach drivers these days but we do have a lot more "drivers".