Why are you equating low cost with exploitation? Why focus on the immigrants when my post _clearly_ mentioned local or immigrants? It is also very disingenuous for you to remark about my location. Clearly, Hacker News is US/Silicon Valley centric. My comment was pointing out that Silicon Valley engineers need to get their heads out of their asses and look at the unemployment not only in the US but rest of the world.
Caregiving is a great job for those who don't have a job. More importantly, SV seems to be forgetting the human component of care giving. A robot _cannot_ possibly take the place of an actual human. It's just not the same.