We are building general thinking machines with the aim of replacing all human labour, ... but humans won't be replaced, they will find other jobs, because when we introduced tractors they were able to find other jobs, ... totally the same scenario.
I love the cognitive dissonance.
Even in the best case scenario where the generated wealth will be distributed, and somehow we will be able to keep them in check (unlikely), what would be the point of life in a world where machines can best us at everything?