It’s a beautiful term, related in meaning to “conformism”. Applies to both Left and Right of course, but more to the Left these days (or at least in a more amusingly robotic way).
This is such a conformist period. It’s a sort of Left-wing version of the 50s.
“Please like me! Look - I’m saying all the right things!”
But the funny thing is that, in reality, the human nature underlying it all doesn’t change that much. In the secrecy of their hearts, most people, qua several individuals, don’t really believe the current politically-correct hogwash any more than they really believed the mom’s apple pie hogwash of the 50s, or the religious hogwash of earlier periods.
It’s just that there are varying degrees of pressure to conform. Because your life, your livelihood, having friends, etc., largely depend on it. So you get this curious disjunction between the beliefs you have to profess to be part of society and reality-based beliefs. The beliefs you have to profess, because of your dependence on society, can be ridiculously un-moored to reality - in fact, the wilder and woolier the better, because a more distinct badge of affiliation.
It’s also related to the “madness of crowds” (and things like /b/ these days). I remember a night at a music festival in the UK many moons ago, when a massive crowd suddenly appeared out of nowhere, started stomping across the tents (lucky nobody was injured really) and trying to break through to the stage. Security shenanigans and a few biffed heads were the inevitable consequence. I had to restrain my friend, who had a glint in his eye, from joining in. For some reason I’ve always been wary of that beast, the crowd beast, the sudden appearance of a sort of “standing wave”, when everyone loses their individuality and becomes sort of insectile for a while.
Probably related to hypnosis as well.
Ah the wonders of a jerry-built cognitive mechanism that happens to be exquisitely sensitive and prone to hurt, yet robust enough to survive (albeit in a somewhat gnarled form) most of the shit life throws at it!