Earlier quoted context omitted.
Market reforms, including expansions of contracting rights for employers and employees, have as a rule been followed by increases in per capita GDP and wages. The positive impact of a reduction in restrictions on the labor market, in favor of contract rights, has been widely observed and studied by economists.
Course in the US wages have been stagnant for 40 years now.
https://www.brookings.edu/opinions/sources-of-real-wage-stag...
Anyway, the US has embarked on a massive social democracy course since 1965, so a slowdown in the rate of development is what you would expect.