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This is what liberals actually believe: In a Mussolini v Hitler election, you should vote Mussolini
(xcancel.com)
At 1:27 he unironically says that in a vote between Mussolini and Hitler, the best thing to do is vote Mussolini because he's the lesser evil. A lot of mentions about how "the math is simple". Does the canned "you're immature for refusing to vote for a candidate that doesn't align with 100% of your views", but throws in a shitty little analogy about refusing to buy a car at a dealership just because it didn't have leather seats to strawman enemies of genocide.
Even smugger energy than 
it is simple. A lesser-evil vote is a relative vote with no connection to specific policy demands, and therefore the two parties can good-cop-bad-cop their way to any conceivable position, even literally committing a genocide in front of our fucking faces, as long as the democrats are slightly to the left.