If there is one thing I've learned from two decades of reading about labor history, it's: Every gain labor has ever made has been taken. Every gain the working class (i.e. the overwhelming majority of people) has achieved has come from organizing their majority of low-power workers and then standing strongly against the empowered minority at the top. Good for these people. They are essentially moving our society forw…
In the long run, the reduced profit margins caused by wages that are artificially high (above the rate that would be established by the free market) results in less investment (profits == compensation for investors), which means a slower rate of economic and wage growth.
>>If there is one thing I've learned from two decades of reading about labor history,
I encourage you to read a diverse set of perspectives. I'd argue that unions have more power than employers in being able to shape the historical narrative.