>> Will automation get cheaper than paying people basically nothing overseas like the garment manufacturing industry and to a lesser extent the electronics industry - like Foxconn?
(a) Unequivocally, Yes. (b) The cost of manufacturing goods in China is within 5% of the cost to manufacture within the US, the difference is the US has cheaper power and China has cheaper labor. If we remove the labor it will be cheaper to manufacture in the US with machines than China with labor, for instance. I'll try and find the economist article where I got this information from.
In fact the promised Foxconn plant in the US was/is going to be almost entirely automated. And why wouldn't it be?
>> I’m not arguing for not making progress, but the more we become a digital economy, the more you will have a few fortunate people who work in businesses with 0 marginal costs and make a lot of money and the rest doing the unglamorous poorly paid work.
This is a social problem, as I mentioned, and the solution isn't to make the lower classes hammer things all day and root around for shiny rocks. That at best slows down the process, it does nothing to reverse it. The solution is to revisit social contract. It'll be a big change, and it will be worth it.