So when Amazon replaced all those cashiers, cleaners and rest of retail personnel with a site they were great, but replacing a few warehouse jobs is sad?

you make a good point, but it wasn't so obvious back then what was happening. the world was still dialup.

increase the wages and ROI for robots will look more attractive

On the long term issue of unemployment, instead of talking about how jobs were lost to robots, we should focus on how to make robots work for us, the rest of the population, not just Amazon. People should invest in these technologies so they get to share in the dividends.

Otherwise, there is a second path - vertically integrated communities, with their own farming, schooling, health and manufacturing, so that people have a job and provide for themselves.