That first chart states that the compensation and productivity diverged in 1979. However, it is hard to see on that graph but it looks like the divergence started earlier, maybe around 1972. Why pick 1979 then? Probably the typical liberal argument of blaming all economic woes on Reagan and the tax cut policies dropping the top rates. If only we raised rates back to 70% all our problems would go away is what they believe. Any link to inflationary monetary policy and outsourcing is conveniently ignored.
'Trumpism' was a natural blow back from said policeis, that took years to take a toll on the American worker. Those problems will persist, as sirens such as Goldsmith, Perot and Buchanan warned about.