A typically cynical take by an armchair orthodox economist who cannot imagine that politics might play any role in human affairs. Everything, literally everything, is obviously determined by ironclad rules of economics textbooks. The world is obviously people exclusively by ultra-rational self-interested homo economicus. Governments that commit to social and environmental goals, up to and including international treaties, are obviously lying.
Pure, depressing, boring cynicism. And flagrantly contradicted, at least in part, by the example of China.
As a semi-offtopic tangent, who even is this author and why should we believe anything they say? The modern information landscape of randos posting blog rants by other randos is really bothersome. This is not how culture should move forward. IMO as yet another rando, of course.