That is the conclusion reached in this important essay by Charles Hugh Smith:
Dividing the Earth's nations into 1st, 2nd and 3rd world has fallen out of favor; apparently it offended sensibilities. It has been replaced by the politically correct developed and developing nations, a terminology which suggests all developing nations are on the pathway to developed-nation status.
What's been lost in jettisoning the 1st, 2nd and 3rd world categories is the distinction between developing (2nd world) and dysfunctional states (3rd world), states we now label "failed states."
But 3rd World implied something quite different from "failed state": failed state refers to a failed government of a nation-state, i.e. a government which no longer fulfills the minimum duties of a functional state: basic security, rule of law, etc.
3rd World referred to a nation-state which was dysfunctional and parasitic for the vast majority of its residents but that worked extremely well for entrenched elites who controlled most of the wealth and political power. Unlike failed states, which by definition are unstable, 3rd World nations are stable, for the reason that they work just fine for the elites who dominate the wealth, power and machinery of governance.
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He is correct. And this has NOTHING to do with Donald Trump. He is NOT the cause - he is the patsy.