It's easy for anyone to go get a different job as long as the supply of jobs is infinite.
But it is not infinite; eventually, we reach a point where we no longer need additional ditch diggers.
“Demographic and labor market trends in the U.S. point to an ominous scenario. The nation potentially faces a shortfall of millions of workers in the decade to come — especially in the critical health care sector — due to a projected reduction in workforce participation.”
The supply of jobs exceeds the supply of workers, so yes, you should be able to go and get another job.
Job supply trends towards zero. The ultimate logical conclusion of this train of thought is there is no point in keeping the lower classes alive. Why do we need 15 billion humans if they do nothing but burden you with their maintenance costs? Let them die so that the quadrillionaires can enjoy the Earth with their perfect AI workforces catering to their every need.
The future is bleak. If this is the sort of dystopia I can look forward to, then I would rather have AI simply wipe out humanity as a whole.