Great article ... enjoyed it
Reinforcing the author, what we need in our society is wealth. Capitalism raises the level of wealth, government taxes and regulation restrict and destroy wealth. Profit is not bad. It is required.
Regarding jobs: the cave men had full employment. Everyone worked from dawn to dusk but they had very little wealth in their society.
Regarding communism: I believe the definition of communism is the state owns the means of production. In the hypothesis of the article the robots are not owned by the government but by individuals. Competition is allowed. May I predict if the state (gov't) owned the robots (communisim) the euphoric wealth of lots of stuff for everybody would very short lived.