Reply #3: "where in his remarks was the clear declaration that Reaganomics failed?"

[robbedvoter]

As usual, Krugman asks the relevant question. There was some sort of such a disclaimer in the book though:
"Reagan may have exagerated the sins of the welfare state, and certainly liberals were right to complain that his domestic policies tilted heavily toward elites, with corporate raiders making tidy profits throughout the eighties while unions were busted and the income for the average working stiff flatlined.

but only to conclude that Reagan was right where liberals have been wrong:

Nevertheless, by promising to side with those who worked hard, obeyed the law, cared for their families, loved their country, Reagan offered Americans a sense of common purpose that liberals seemed no longer able to muster."


Also, the failure to change the narrative from the Clinton administration might have something to do with think tanks, GOP owned media and a few other such things beyond the grasp of the democrats to this day.