People have been concerned about automation for a couple of centuries, but doing so completely ignores human nature.
Automation removes jobs, but the increased "leisure" time (not really leisure but a measure of time not spent performing that manual action)
creates new job requirements and new functions to fill that void.
The classic example is the motor car. It used to take a lot of people to make a horse go - someone had to grow it, shoe it, feed it, do whatever other stuff horses need (I'm not a country person). The number of people required to build and maintain a car was significantly fewer.
What happened though, was that the car created the roadside diner, the motel, the petrol station. It increased the number of people who could holiday, it meant you didn't need to work where you lived, it created new towns that would have been inaccessible.
The car didn't remove jobs, it just created ones we didn't think we needed. The same goes for computers and most other modern technology.
https://www.google.co.uk/url?sa=t&s...BG3qzXiePOR6XIyiQ&sig2=v5LYOK2vFWmIpXXeF5CLgA