Greenfield calls it "The Death of the Left," but more properly it should be called "The Death Brought By the Left."
Imagine a future in which the left wins permanently. Just picture Hillary Clinton and then Elizabeth Warren and finally Bernie Sanders kept alive in the Oval Office by electricity and fetal stem cells from babies. Imagine the country run like the DMV. Imagine it divided between the politically connected and the poor. Imagine everyone else giving up and surviving on the black market. Imagine Social Justice becoming a slogan that everyone is forced to repeat, but that no one understands.
And then the Chinese will come along to take advantage of the cheap labor.
Read the whole thing, as the saying goes.