After this administration I hope we get to see some really interesting psychological studies on the sunk cost fallacy as applied to a political demagogue.

As someone else said, it adds nothing and it's a tiresome sentiment.

So what do you think is the ultimate cause of American wage stagnation?

I don't know, but if I had to guess it's a lack of regulatory framework to protect the rights of workers against corporate abuse, combined with modernization of many industries worldwide making US employees less competitive (valuable) on international terms.

The problem is your comment adds nothing to the conversation