Perhaps the unspoken honest answer is that people without other assets are going to live in 'poverty' (compared to the rich); their brains will operate at better watts-per-compute than the computers for a long time and still be worth something. They will earn a living on this. The people that do have assets (e.g. own the robots), are going to be extravagantly wealthy. It will be a feudalism but without violence, seniorage, or other expectation that the poor work for the good to the rich. Just that there's going to be really poor and really rich.
I and my kids will almost certainly be left behind in this. I am not an asset owner. But I will not attack my neighbor for their wealth. I will not turn over my ability to live to some bureaucrat who steals it from the rich and will eventually make me dance and beg for it. Let the rich asset owners go to the stars even if I will not be joining them. Better to have some of us get ahead than hold all back trying to leave no one behind.