I kind of get it, but at the same time...isn't "we made a machine to do something that people used to do" basically the entire history of of technology? It feels like somehow we should have figured out how to cope with the "but what about the old jobs" problem
I always compare it to the age of the industrial revolution. I have no doubt you had stubborn old people saying: "Why would I need a machine to do what I can do just fine by hand??" Those people quickly found themselves at a disadvantage to those who choose not to fight change, but to embrace it and harness technological leaps to improve their productivity and output.
Now that information work is being automated, there will be nothing left!
This "embrace or die" strategy obviously doesn't work on a societal scale, it is an individual strategy.