If we actually care about one another (or more cynically want to avoid the potentially violent unrest that can accompany mass unemployment) we need to do at a minimum make sure everyone is taken care of. I'd say we need to find a way to make everyone feel useful and productive. To do that, we need to rethink how we spend human effort and to what end. If we evolve technologically to the point that jobs aren't about catering the whims of the wealthy or subsistence - why not explore creating an economy of exploration and human evolution? Why not pour our wealth into educating people and increase the number of people who can play a part in helping us live longer, explore the universe, and enjoy life more? Let's replace menial jobs with scientists and artists.
Because left to their own devices, the kings of capital will let the workers replaced by robots starve and rot.