That'll be the people that think communists are taking over universities to destroy Western civilization.
Already happened. Been that way for many years. And everyone should know it by now, because they've been
completely open about what they are, and what they're trying to do. That's how they accrue social capital and lefty cred.
We all get to hear what they have to say when they run their stupid mouths off and try to "out-commie" each other, and what they say exactly follows the pattern of what you said, usually to an outlandish level as well because they need to keep pushing to new extremes if they want to compete.
No true Marxist though, apparently.
You can see how this all manifested from as far back as people like Paul Sartre, a left wing philosophical heavy weight that adopted Maoism. He wasn't demonized in western universities anywhere near as much as he was looked up to,
and he still is.
Khmer Rouge took the ideas and writings of Sartre literally, and we can all see how well that went for Cambodians.
And here he is being edgy, to the point of looking like a caricature that most people would struggle to even believe actually exists as a serious thing. Typical of the far left, from the very top to the very bottom.
Sartre, who stated in his preface to Frantz Fanon's The Wretched of the Earth that, "To shoot down a European is to kill two birds with one stone, to destroy an oppressor and the man he oppresses at the same time: there remains a dead man and a free man," has been criticized by Anderson and Michael Walzer for supporting the killing of European civilians by the FLN during the Algerian War. Walzer suggests that Sartre, a European, was a hypocrite for not volunteering to be killed himself.
https://en.wikipedia.org/wiki/Jean-Paul_Sartre
The political partisanship at universities has obviously gotten much worse since then. We know that not only because it's obvious to everyone, but because people and organisations have been keeping an eye on those trends. Basically anything that is right of centrist liberalism is absolutely deplatformed, and they will keep trying to push that marker as far left as they can.
So, yes. The claim sounds absurd to anyone who has never looked, but I'm sure you have, and I'm sure you know that these walking talking stereotypes are actually real people.