We are right back where we started, in the postwar era - where autoworkers could demand the wages of doctors, just to slap bolts on cars.
Of course, Vonnegut anticipated this as well - positing that in the future, the Government would absorb all excess labor in the Army or in the "Reeks and Wrecks" - a Reconstruction and Reclamation Corps similar to the CCC. This never materialized, mostly because unemployment due to automation never really reached levels where government intervention of this sort would be required.
Vonnegut's dystopian future was set in the late 1950's. Since then, automation has expanded considerably, and with each wave of new technology (industrial robotics, personal computers, the Internet) thousands if not millions of jobs were obsoleted. Yet, for some reason, the unemployment rate has remained fairly steady over the years, varying from 7-10%, sometimes less.
One would have thought that, given this huge cultural and technological shift, that unemployment rates would approach 50% or more. But not only has unemployment remained steady, the economy has absorbed an increasing population of workers, and the entry of women into the workforce.
In short, the concept of "automation taking away our jobs" just isn't going to happen. If it had, it would have happened by now.
This is not to say that people whose job skills are obsolete will have to retrain for other work. It is not impossible to do - I have changed my career several times already. And it does not mean that some folks, approaching retirement age, will be obsoleted before they are ready to retire. I have written about that before - expecting a steady job until age 70 is foolish thinking. You could be out on the street for a number of reasons - besides automation.