The PC culture that now dominates American schools is often over-the-top, silly, and uninteresting. And, according to author Theodore Dalrymple, that’s exactly the point.
In a 2005 interview he made the following comparison between communist propaganda and the new politically correct culture:
“Political correctness is communist propaganda writ small. In my study of communist societies, I came to the conclusion that the purpose of communist propaganda was not to persuade or convince, nor to inform, but to humiliate; and therefore, the less it corresponded to reality the better. When people are forced to remain silent when they are being told the most obvious lies, or even worse when they are forced to repeat the lies themselves, they lose once and for all their sense of probity. To assent to obvious lies is to co-operate with evil, and in some small way to become evil oneself. One's standing to resist anything is thus eroded, and even destroyed. A society of emasculated liars is easy to control. I think if you examine political correctness, it has the same effect and is intended to.”
The PC culture in America’s schools has not been built on foundations of rational discussion, but by purveyors who are louder and more obnoxious than their opponents. It does not so much indoctrinate as wear students down through its insipid and vacuous discourse. It is mainly effective not at producing disciples but people who no longer have the strength to fight back.