Then why don't we have 80% unemployment? Because we found other jobs for those people, the economy is much, much bigger, life is much, much better and everybody is better of.
And it isn't like that hasn't happened again and again and again through history.
So I ask you, what proof do you have that this time it is really different? As opposed to every other time we thought it was different through history?
This last point is the difference that this new wave of automation has compared to the waves of past. It is unprecedented in human history to be facing a future where human effort can be multiplied by such enormous multiples that the value of labor approaches zero. This coming automation revolution would have to simultaneously grow the economy to greater proportions that automation reduces the cost of labor. I don't believe this will ever be possible, but definitely not in the time period that a properly developed AI and robotic technology could corner the market in labor (once developed, less than a decade). Society is not prepared for what is coming, and it will be disastrous.
This has been happening in China too -- recently(late last year) there was news about Foxconn replacing over a million jobs with robots in China. What this means is cheaper products which are also accessible to those who don't work. It narrows the purchasing power gap between those who work and those who don't.