Blondie has nailed it:
jws are not taught to listen but to teach others
If jws did happen to listen (a huge if), they likely would not know how to convey they were listening. Pride rules.
It is simply safer to assume they don't know how to listen. At best, if they are still invested in the discussion, they will be thinking up what to say next.
Then, out of the blue, they'll flick a switch and the "discussion" is unilaterally ended.