I think the moral panic of those opposed to DEI is really just a conservative reaction to social change. They want things to go back to where we were in the 1950s, and see any efforts for ameliorating historical disparities as antithetical to their desires, while they use "free speech" as an excuse to be bigoted. IMO.
Even if you assume that is true, the Left is always the most likely to use neurotic over sensitivity as an excuse to shut down the discussion. That tactic is used, over and over, since many of their ideas and its implementation cannot hold up in a rational discussion. The twitter files showed how far t hey will go to shut down the discussion. The irrational have this need to shut down the discussion, less their belief systems fall apart in front of them. All fascist behave that way, since their ego is faux inflated, while they stand on intellectual shaky ground. This is not a healthy combination.
In this web site, the Religious community gets dumped on all the time, by Lefties attempting to infiltrate and control the narrative. If you notice the Religious do not get as whiny as the Leftists. They are more stable minded to their beliefs and do not use censorship tactics, to avoid anything that will shake them off their faux tree. Many Left wing ideas are psychologically damaging, and instead of dealing with the symptoms; overly whiny, the leaders reinforce the damage; punishment for lack of conformity.
It reminds me of a child with an over protective mother, who tells her child he is the best. She may be doing that to build up his lack of confidence However, her child is not rational enough to see the exaggerated cause and effect, so his ego get inflated, thinking all this is true.
His mistake is showing off and telling his friends, who will rag on him, since they can see the reality that he is nothing but a big mouth. He will get upset and his mother may need to fight his battles to maintain what she has created; censorship. His friend really wish he would snap out of the balloon head.
Healthy behavior is always open to better ideas, but will not just accept change for the sake of change, especially if comes from mama boys, who are too insecure to laugh at themselves. The latter is a tell that shows there is loose nerve that is semi-repressed; flawed. The Lefty should take their over reaction as a sign for needed internal change. But the ego reinforcement, will not let them grow into rational self knowledge.
Someone mentioned Jungian Psychology as taboo to Lefties. This orientation of psychology is connected to our natural collective human nature common to all humans. It is what unites us as human. The more common orientations are more ego-centric. This separated us. The ego has will and choice to be unnatural, which appeal more to the Left; throw out the past. Collective human nature is about natural human behavior which is taboo to the Left. This explains the systemic over sensitivity. The ego will power cannot always overcome the natural unconscious doubt from the natural parts of the brain. We do not help them by shutting up, but rather they need to learn from the ego triggers within free speech.
In the USA, the new Speaker of the House has reassigned Rep Schiff from his former role in House Intel Committee, since he was/is a pathological liar. It makes no rational sense to have such a person involved with national secrets. All Democrats are upset, that their best pathological liar is being expelled from a sensitive position. This speaks volumes in terms of the why so many of the base are so whiny; good soldiers with bad information means inner doubt and whiny behavior. The rest of us will try to deprogram you by making you become more self aware that whiny is a symptom of a problem.