This was contemporaneous with CIA pushing postmodern philosophy and all the subjectivist navel-gazing which that entails.
Anticommunist counter-cultures have the distinguishing character of being anti-systematization, anti-objectivity, and anti-intellectual. Unlike science which refutes appearances for inner truths, this way of thinking refutes inner truths and elevates the immediate impression. You aren’t allowed to elaborate a philosophy, you can’t systematize based on a collection of facts. Every fact has an isolated existence from which extrapolation is invalid.
that can’t be refuted without more specificity (i.e. particular thinkers) and I’m not really prepared to argue my point in detail.

plus the MoMa leadership has been really close with Epstein and Maxwell