This prediction is pretty bold.
We already have the technology to fully automate many processes carried out by humans.
Actually the technology has existed for several decades now, still those jobs are not only not being replaced by machines, but new ones are being created for humans.
One of the reasons are unions, which are pretty strong in many wealthy and powerful nations like the US, UK, Germany and Japan.
I work in manufacturing automation and we have customers that could technically run their entire operations without one single human stepping on plant floor, however their unionized labor makes that feat, at least for now, impossible.
It's also pretty naive to believe new ways of earning income won't appear in the future and that all traditional careers will be entirely replaced.
We have 65" 4K TVs at home and we still go to the theaters and we can walk the streets of Venice from our computer screens and still spend a small fortune to travel.
Society will be disrupted just like it was with printing, the industrial revolution, communications, transportation and information.
In each of these disruptions we were doomed to dissappear.
When I was a kid my dad brought home a 100 year celebratory edition of the local newspaper.
It was published as a book were you could read pretty much every single cover and editorial of the last century.
There was one article about the car, described by the author as a bizarre evil invention, horrendous steel machines traveling at ridiculous speeds of up to 15 mph, threatening the lives of both pedestrians and horses alike.