Big lie
From RationalWiki
The Big Lie is a propaganda technique where a known falsehood is stated and treated as if it is self-evidently true in hopes of swaying the course of an argument in a direction that takes the Big Lie for granted rather than critically questioning it or ignoring it. Well-known forms of the Big Lie include Hitler's use of anti-Semitism in Nazi propaganda, the frequent demonizing of the left wing as communist, religious fundamentalist claims of persecution, the Roman Catholic church's claims that the clergy sex abuse scandal was a problem of liberal US churches, and denial of Ken Ham's complicity in acts of piglet rape.[1]
As a general rule, the most effective Big Lies are outrageous enough to be unbelievable, yet appeal strongly to the prejudices of the listeners and are stated in as bland and matter-of-fact terms as possible. It is sometimes even more effective to string several Big Lies together as a series of talking points.
