The Lubyanka, starting as far back as the 1920s.
We kill it when we recognize that today's DemocRAT party is really the Communist Party, Joe McCarthy was right, and we make Communist Party affiliation punishable by permanent exclusion from American political life.
Bring back HUAC!
It has engulfed churches (like the United Methodist Church lately) and tiny little elementary schools out in the middle of nowhere. It has pushed corporations to embrace it even though it has significantly and negatively impacted their bottom line.
According to Prof Mattias Desmet, it is a giant brainwashed cult (a "mass formation") that, though helped along by organizations and movements, has taken on a life of its own. Having read his book, The Psychology of Totalitarianism, twice (in Audible) and now working through the hardcover carefully, I tend to agree.
I have been calling it Woke World lately. That said, it may even be bigger than just the Woke movement.
Those who belong to it are fully indoctrinated to the point of hypnosis. They are like zombies, blocking out all opinions that disagree with theirs...even blocking out reality itself.
It's a kind of madness that one might have encountered in Germany starting in the 1920s.