I agree with your comments in general, although I'd just add that in the current capitalist world, we would definitely have to compete - if we have little or no economic value, it would be hard to exist. It might be even worse in a case where humans are not even a zero-sum, i.e. use up more value than they add. I'm guessing in a world like that, it'd be a good idea to switch to some form of a guaranteed minimum income rather quickly.

Of course, it's pretty difficult to predict the future, and it's possible that human-computer hybrids will continue to outperform vanilla computers in the long term (as you point out).