To a leftist/NPC, conversation, especially 'debate', has been streamlined to an efficient exchange of social value signals labeled with keywords.
The keywords recall memory of social value signals associated with that keyword, which in turn recalls emotions experienced while receiving those social signals, which are copied by example, which in turn causes the NPC to attempt to enact cathartic (emotion-relieving) behavior, which it again copies by example.
The key idea here is that the NPC has no experience outside the social group - no individuality. It was raised in confinement and never learned anything for itself before it's was completely assimilated by the people around it to the NPC mob.
So the NPCs are trained to have uncontrolled emotion at all times.
They see stimulus, they become emotional, they will feel the urge to recall the keywords associated with those emotions.
Their goal is simply get through the list of keywords necessary for catharsis (return to baseline emotional state), not to make any logical point; they have no concept of true logic, only a succession of emotions that result in either reward or punishment from their masters.
So that explains why braindead leftist NPC just rattles through a bunch of namecalling and self aggrandizing with absolutely no explanation or argument - it simply wants to get through the list of 'good boy' words as fast as it can.
The NPC is attracted to the keyword signalling of its counterpart. It ignores difficult stimulus (not optimized for keyword exchange) that causes it negative emotion and proceeds to the keywords that attracted it.
It's emotions regarding the difficult stimulus are partially released when it completes its signalling routine, which is the reward conditioned into it by its masters by media narrative - "just spread the propaganda and the evil nazis will go away".
Make no mistake, these things are not human, they have absolutely no free will and their instincts have been brainwashed over.
They can't define anything they say, the only meaning behind the keywords for them is the emotional context.
They can't put anything that they say into different words because they can only achieve catharsis through keywords with socially conditioned rewards, so they never had an incentive to be creative and express their individual emotions or thoughts.
They have absolutely no possibility for recovery whatsoever by the time they are adults.