It's been a long time since I did any reading in Linguistic Theory, but this is actually a really good observation.
I've lost track of where Noam Chomsky falls on this divide, but some researches think that the inherent neurological structure of our brain pre-disposes us to have language with certain inalienable characteristics. Other researchers think that the dynamic evolution of language over time has re-shaped basic human cognition and thinking patterns. Or perhaps a combination.
I think the Left gave up on "Truth" and "Objective reality". They seem to believe that things just are whatever they want them to be. This goes against Aristotle's idea on Identity which Ayn Rand constantly referenced: "A is A". For the Left, "A is A and also B and sometimes it's C as well, depending on how we feel. And Eleventy-thirty is my favorite number."
The Left has made language meaningless and now they can't think straight. This is probably an actual psychological problem for many people right now. No joke. This could be a serious mental health issue. For millions.
Of course we aren't dogs and some of us, instead, after enough of this just want to ring the next prog's neck so that we don't have to listen to it all anymore, so that the constant jangle and discomfort from the cognitive dissonance stops - so that OUR heads stop hurting from the constant noise the refrain that this does not compute, does not make sense.
The problem is that you cannot disconnect the brain from reality entirely. You have to eat, and there is a some minimal level of cognition required whether your meal comes from a teat or you have to do the computation that you need to go to the store to buy food because the freezer is empty of microwavable meals, or even just the reality of opening the freezer, unwrapping a packet, putting it in the microwave for 2 minutes 30 seconds, putting it on a plate, not eating it while it is steaming hot, etc.
Once you have the cognition required to execute those thought patterns, other inconsistencies with reality will cause the brain to jangle.
Unless you are a prog political commentator who has discovered that meals at swank restaurants come from jumbling the right nonsense words together in a statement combining Trump, violence, racism, and right wing hate speech.
There is another self-preserving response to such nonsense, however. When things stop making sense, when they become too painful, the brain is conditioned to turn it off and tune it out.