For the woke Marxist movement (which has clearly completed its long march through our academic institutions) it really isn’t important if the revisions, alterations, reinterpretations, etc. make sense or can be logically supported, it’s much more important that they just keep making them. That way no one can ever have the confidence of certainty on any point, and it’s that much easier to replicate their ideas-of-the-moment in other brains. Another poster has already quoted 1984, but I’m reminded of an early scene where Smith is told that a certain old article mentions someone now out of favor with the Party, and he must go change the archives. He notes how most jobs-worths would simply switch the outcome of the old story (previously if it concerned a now-hated person winning something, just change it to make that person lose the thing) but that he found it more interesting to wholly invent a new situation. If I remember right he changes a fairly unremarkable story into one where the unperson died heroically fighting for the current party orthodoxy back in the day. Point being, it doesn’t matter what the fuck they say or believe or claim, the only point is that they can never let us be certain of anything. That’s to their advantage, always.