As many have said, you probably can’t “win” an argument with a Trumper, but it can help you cope with the situation to realize that the person is suffering from a disordered mental state.
-----Carl Sagan, in The Demon-Haunted World: Science as a Candle in the Dark (New York: 1995); Ch. 13, Obsessed with Reality, p. 241
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People caught up in the self-deceptions that are absolutely fundamental to right-wing “thinking” are, in one sense, to be pitied. But if you can’t summon up pity for the deluded one, realize that in most cases they cannot escape from their need to cling to a false worldview:
-----Eric Hoffer, in The True Believer: Thoughts on the Nature of Mass Movements (Harper & Bros., 1951)
Hoffer again, in a passage from 1951 that applies to the 2021 fact that some are profiting from the Trumpers’ impulse to defend their delusions:
-----Eric Hoffer, in The True Believer: Thoughts on the Nature of Mass Movements (Harper & Bros., 1951)
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The Trumpists feel that their beliefs are worth clinging to against all evidence because of the way those beliefs make them feel:
-----Alan Moore, in the documentary film “The Mindscape of Alan Moore” (2003)
More on that topic:
-----Elizabeth Bear, Ancestral Night (Gallery / Saga Press, 2018)
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But though we may not be able to break through the determined self-delusion of a Trumper, it’s vital to stay checked-in. We can’t just throw up our hands and say it’s hopeless; we have to, as it were, work around the willfully-ignorant:
-----Timothy Snyder, On Tyranny: Twenty Lessons from the Twentieth Century (New York: Tim Duggan Books, 2017)