J. Peder Zane: The Gaslighting Of The American Mind

 This is right. Progressivism now has the social power to declare obviously unproven propositions--and even patently false ones--to be official truth. And: to declare them to be beyond questioning and criticism. And: to declare those who do question or criticize them to be [insert accusation of evil here]--racist, "white supremacist," "transphobic," etc. And: to have such people shunned / ostracized: shut out of public discussion, fired, harassed, threatened. Progressivism avoids debate, preferring to shout down / shut down their opponents. The art of debating without debating, to modify a line from Bruce Lee.