No matter what proposal you put in front of them, they acted like they didn't understand and simply reiterated terms.
But, at least then they heard something. It may have been gibberish to them, but at least sound waves made it to their ears.
Today, these people are like overwhelmed autistic kids needing noise canceling headphones to blot out the unwanted stimuli. It may be therapeutic but it doesn't solve the situation.
Now that Brexit is complete the EU has gone one step further, blocking out the very real strategic and tactical disadvantage they are in dealing with the United Kingdom in trade deal talks.
The arrogance and intractability of the EU when it comes to negotiations is supposed to be their biggest weapon. They project a strange combination of strength and indifference that can only come from people thoroughly insulated from personal accountability for their mistakes.