The whole point of the argument was that as robots improve they will displace more and more jobs without creating sufficient new ones
People have been saying that about automation for centuries now, and they just keep being wrong.
Actually they've generally been right. The Luddite period was the beginning of 80 years of chronic underemployment, generations of people with horrible lives of poverty. The saving grace was expansion, stealing other peoples land and resources and giving it away to the poor and the capitalists, think of the States, expanding west throughout the 19th Century, giving the poor land to be not so poor with millions of people coming from Europe, tons of resources that were easily harvested and used to create jobs. I recently read that 6 million Italians came to America at the end of the 19th century, they came because their were no jobs where they lived.
Once that came to an end at the beginning of the 20th century, workers started to be removed from the workforce, kids first, put into school. This is still happening with more and more education being required for most any jobs, people are expected to spend close to 1/3rd of their life in school now. Many women also were taken out of the workforce about the same time with the idea that they would stay home and be homemakers.
When that didn't work, well there were windows to break, we call them world wars. The first WW consumed a lot of labour, and after we fixed the windows there was a major depression so we had another war which also employed a lot of people replacing windows. Afterwards we've had to fall back on cold wars and various other wars including the current war on terror, all basically breaking and fixing windows (or stockpiling them) to avoid the unemployment that comes with automation.
How many people are employed in the various security fields needed by the war on terror? And is this really a positive way to employ people? Soon we can all be employed at jobs like airport security or plain old informants.
Then there is removing people by jailing them (1% of adult Americans currently in jail) and declaring them unemployable afterwards. Also creates security type jobs