Im not saying all 3 are correlated... As someone who grew up in American Manufacturing, built a tech company around it. Americans at large argued for these 3 counter intuitive things within the sector and weakened it. IMO.
I don't know how to unravel this knot you've tied with out having a lot more questions answered, but your concepts seem a little muddled. Automation and outsourcing jobs will not lead to higher pay here. That much should be obvious.
Im not a researcher, just some bloke on the internet, I feel like commenters on hacker news expect too much from these obviously personal opinions.