How does one fight a fiction, a fantasy?

A political spectacle is based on making Belief through make believe (inspired by Richard Schechner, “Make Believe and Make Belief”). There is a clear guideline given to that in The Prince by Niccolò Machiavelli. “How a prince must act to win honour” is the title of chapter 21, in which Machiavelli writes: “(…) a prince must endavour to win the reputation of being a great man of outstanding ability.” The crucially concluding question that Charles M. Blow poses in his New York Times article Trumpism exolts its folk hero is the following: “How does one fight a fiction, a fantasy?“. This question overwhelms me. I cannot think of possible answers. Fiction mixed with the important tool of the sovereign -unpredictability-, our fighting seems to become futile. Machiavelli, p.81: “I hold strongly to this: that it is better to be impetuous than circumspect; because fortune is a woman and if she is to be submissive it is necessary to beat and coerce her. Elizabeth Kolbert, the New Yorker-  “Why Facts Don’t Change Our Minds”, explains what became known as confirmation bias: “(…) the tendency people have to embrace information that supports their beliefs and reject information that contradicts them” and includes Jack Gorman and Sara Gorman: “(…)cite research suggesting that people experience genuine pleasure—a rush of dopamine—when processing information that supports their beliefs.” We constantly create fantasies. We are making ourselves believe and are made to Belief. A fantasy. How can WE fight the arrival point of creation of fictions?  (if “we can hardly tell where our own understanding ends and others’ begins”? Sloman and Fernbach in Elizabeth Kolbert, the New Yorker-  “Why Facts Don’t Change Our Minds”)