If we have the technological prowess to replace human labor in full yet can't figure out what to then do with our lives other then paint then we truly are a doomed species. It seems like people lack imagination, everyone either thinks "don't worry we will still have jobs (appeals to social history)" or the "with nothing to do we will wither and die (appeals to evolutionary history)". I think both those camps are missing something which should be self evident if we ever get to this point: The freedom and ability to create meaning in ones own life.

I do agree with you though, if we are kept in captivity by political and social structures (ahem..religion) that fail to evolve with technology (which seems like human nature sadly) then the average human will go the way of the sloth or the people in idiocracy. I am hopeful though that the AI will save us from that captivity more so then reinforce it yet that may be a foolish hope.

Is being a zoo animal so bad if we have the full capabilities of very powerful AI? What if those AI's were specifically devoted to making it a better zoo? At that point what is the difference? What is inherently bad about being a zoo animal if you can't see the walls and the zoo keepers don't abuse you?

At some point attention becomes the ultimate resource. Most people earn income by paying attention to somebody else's projects. But with a little introspection and basic goal setting training, many people identify projects to which they would prefer to give their attention if income were not an issue. I think a society in which a higher proportion of one's time can be spent on personal projects vs. other's projects is a goal worth working towards.

I think this is unnecessarily pessimistic. We'll find our fights, whether mountain climbing, video games, even gaining recognition as a painter.