Clay,
Interesting that you mentioned the question about government support when jobs disappear due to innovations such as robotics. In Hawaii a legislator just introduced a bill to try to get a law if not a discussion going about that very real scenario. What I said, if you go back and read it, is that the working poor voted for Trump because of the despair they feel at working hard and not being able to provide a better life for their families then what their parents had. 
Trump hit a cord with those folks, no so much because they are racists or a bunch of ignorant bigots. They are scared and frightened about how they are going to provide for their families. 
Putting honest thought to the scenarios you mention is something that should be happening. Encourage more people to return to farming ? Provide educational opportunities for robotics now ? Look at the technology of the future now and implement programs NOW to empower people for the times that are a coming. 
Survive Trump.