"Defusing aggression" and letting "the other person punch himself into exhaustion" are at the very least misleading expressions. They generally connote the idea that the aggressor can be and/or has been manipulated into surrendering, and conversely, that talk and rationality are inherently superior in a fight.
Alright then, DOES the aggressor actuallybliterally punch himself into exhaustion by means of the calm rationality of the other party? I don't see that as being realistic, and I dont see that period. Is the aggressor actually manipulated into surrendering? Again, I see no evidence of this in real life. The aggressor only backs down when he or she is convinced that his or her superiority is intact. That's the only conclusion that makes sense.
Actually,...I see this every day in multiple situations, whether it be martial arts, dealing with aggressive personalities as a police officer or healthcare worker, or even the parent dealing with the child having a meltdown in the grocery store. But, perhaps, we may be talking past each other here. Perhaps some better context and perspective, because what I see in many of these situations is more or less a battle of wits versus emotion. Emotions cloud the intellect. If I were a betting person, in these situations, I would choose the person who is calm, collected, assertive (a form of aggression),...but not emotionally aggressive. Martial arts,...the person who is emotionally aggressive,...9/10 times is going to make a mistake and end up on his back on the canvas. In war,...he's going to end up with a bullet between his eyes. On the street, he's going to end up in a jail cell, the hospital, or dead. In the hospital, he's going to be escorted out the door by security and probably end up in jail. A child having a meltdown in a store,...walked right out the door. In all of these cases,...who ended up being the superior aggressor? Sometimes, the person who is calm and assertive, is also an aggressor,...but not emotionally,...and absolutely YES, manipulate the emotional aggressor into submission. I've worked in health care for over 35 years,...seen it happen many, many times,...I works very well.
Now, in these cases, none of these conflicts were with an "indifferent" personality. So, admittedly, these examples do not fit your original argument of "the aggressor vs the indifferent". The calm, collected,...but assertive, personality may, at times, "present" as indifferent,...but there is still an end goal in mind. Picking apart my previous posts, I hadn't been clear enough,...you had to tease it out of me,...
At any rate, I think we haven't put context and perspective into our conversations yet. We may be, sort of dancing around the same concepts, but not agreeing with each other due to our different perspectives. I like this banter though.
