If Miller took unknowing liberties with the facts of his own era, he also played fast and loose with the historical record. The general outline of events in The Crucible corresponds to what happened in Salem of 1692, but Miller’s characters are often composites. Furthermore, his central plot device—the affair between Abigail Williams and John Proctor—has no grounding in fact (Proctor was over sixty at the time of the trials, while Abigail was only eleven). Thus, Miller’s decision to set sexual jealousy at the root of the hysteria constitutes a dramatic contrivance.
Which brings us to another thing that comes with dogma: heresy. Heresy means those beliefs that undermine the orthodox consensus, so it must be eradicated: by education, by reeducation—if necessary, by censorship. It makes a perfect, dreary sense that there are speech codes, or the desire for speech codes, at selective private colleges. The irony is that conservatives don’t actually care if progressives disapprove of them, with the result that political correctness generally amounts to internecine warfare on the left: radical feminists excoriating other radical feminists for saying “vagina” instead of “front hole,” students denouncing the director of Boys Don’t Cry as a transphobic “cis white bitch” (as recently happened at Reed College), and so forth.