People have been automating stuff for centuries and it hasn’t caused universal unemployment yet. (Take stream-powered water pumping and felting for example) How long do they project this shift is going to take? Another 500 years? Cause it certainly doesn’t seem to be working that way so far.
The glory and ultimate triumph of capitalistic economic theory and practice is that, when a new idea appears that will make some money for the person who markets it, it gets funded, and a whole new range of enterprise is brought along in its wake. Innovation is encouraged, and with each new innovation, new opportunities and even whole new professions are created. So the drudgery jobs eliminated by automation make available a whole new workforce, ready to be trained in the new technologies.
What ever happened to the hundreds of young women who manned the telephone exchanges? Or the legions of workers toiling on an endless and somewhat mindless assembly line? Few of these people ever voiced much satisfaction with the job (though of course there were those who GLORIED in the job). When the mechanization of the drudge work came along, they were free to experiment with applying what they already knew elsewhere. Some opened their own entrepreneurial activities, a further expansion of capital implementation, and eventually an almost exponential return on investment.
Capitalism is a system which feeds upon itself, generating its own expansion with reinvestment and gathering the fruits of innovation, scattering them upon a receptive and willing consumer. Socialism also feeds upon itself, but since there is no mechanism for reinvestment or expansion, eventually it runs out of the fund of capital with which it started.
Referenced you in post 22