He’s really gone and done it this time. Now everyone can see what a disaster he is.” How many times have we heard this about Donald Trump? And how many times has it been proved wrong? Well, maybe this time he really has overstepped. After all, his clowning around with tariffs, sparking trade wars, then suddenly reversing his position, could provoke a global recession, perhaps even a depression. Surely his supporters will disown him? But I’m not banking on it, and this is why.

Already, Trump has waged war on everything that builds prosperity and wellbeing: democracy, healthy ecosystems, education, healthcare, science, the arts. Yet, amid the wreckage, and despite some slippage, his approval ratings still hold between 43 and 48%: far higher than those of many other leaders. Why? I believe part of the answer lies in a fundamental aspect of our humanity: the urge to destroy that from which you feel excluded.

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There is strong evidence of a causal association between growing inequality and the rise of populist authoritarian movements. A paper in the Journal of European Public Policy found that a one-unit rise in the Gini coefficient (a standard measure of inequality) increases support for demagogues by 1%.

Why might this be? There are various, related explanations: feelings of marginalisation, status anxiety and social threat, insecurity triggering an authoritarian reflex and a loss of trust in other social groups. At the root of some of these explanations, I feel, is something deeply embedded in the human psyche: if you can’t get even, get mean.

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