Let me enhance your knowledge.

You link to three stories, but so far as I can see only the first of them is actually anything like an example of what we were talking about. Still, that's one more than I knew of, so thank you.

The way many students at Yale responded to Christakis is shocking, for sure. But, again, this is a long long long way from the Cultural Revolution. She didn't lose her life or even her job. And this is an unusually extreme case.

Karl Marx

I knew where the quotation comes from, and what it refers to, and what it means, as you could have worked out:

Nor does it bear anything like the same resemblance to the Cultural Revolution as Louis Napoleon's assumption of power did to his uncle's.