I think Elon realized that his input was being thrown in the trash pile by the #lyinglunatic. Better to make a point, and leave then waste time trying to influence someone who creates his own reality without regard to the facts. Trump is mentally ill in the sense that he constantly lies, contradicts himself, suffers from a deep narcissism, and says whatever he believes brings him attention and adulation from the small fraction of Americans who support him. Nothing else matters to him.
From conservative columnist David Brooks today in a piece titled
Donald Trump Poisons the World , quote:
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[In a piece published in the Wall Street Journal, administrations officials] McMaster and Cohn make explicit the great act of moral decoupling woven through this presidency. In this worldview, morality has nothing to do with anything. Altruism, trust, cooperation and virtue are unaffordable luxuries in the struggle of all against all. Everything is about self-interest.
We’ve seen this philosophy before, of course. Powerful, selfish people have always adopted this dirty-minded realism to justify their own selfishness. The problem is that this philosophy is based on an error about human beings and it leads to self-destructive behavior in all cases.
The error is that it misunderstands what drives human action. Of course people are driven by selfish motivations — for individual status, wealth and power. But they are also motivated by another set of drives — for solidarity, love and moral fulfillment — that are equally and sometimes more powerful.
People are wired to cooperate. Far from being a flimsy thing, the desire for cooperation is the primary human evolutionary advantage we have over the other animals.
People have a moral sense. They have a set of universal intuitions that help establish harmony between peoples. From their first moments, children are wired to feel each other’s pain. You don’t have to teach a child about what fairness is; they already know. There’s no society on earth where people are admired for running away in battle or for lying to their friends.
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David Brooks complete column at
https://www.nytimes.com/2017/06/02/opinion/donald-trump-poisons-the-world.html