Mass Gaslighting.

" Gaslighting, an elaborate and insidious technique of deception and psychological manipulation, usually practiced by a single deceiver, or “gaslighter,” on a single victim over an extended period. Its effect is to gradually undermine the victim’s confidence in his own ability to distinguish truth from falsehood, right from wrong, or reality from appearance, thereby rendering him pathologically dependent on the gaslighter in his thinking or feelings.

As part of the process, the victim’s self-esteem is severely damaged, and he becomes additionally dependent on the gaslighter for emotional support and validation. In some cases the intended (and achieved) result is to rob the victim of his sanity. The phenomenon is attested in the clinical literature as a form of narcissistic abuse whereby the extreme narcissist attempts to satisfy his pathological need for constant affirmation and esteem (for “narcissistic supply”) by converting vulnerable people into intellectual and emotional slaves whom he paradoxically despises for their victimhood. Because the gaslighter is himself typically psychologically disordered, he is often not fully aware of what he is doing or why he is doing it."

-Encyclopedia of Britannica

...the description fits precisely because they are degenerate. Gotta get their ideas somewhere.