Don't know why you'd assume that. Although you're right, recently I haven't been involved in any of that because I can't be. When I was younger I got into fights and have indeed been at the receiving end of a knockout.
Heads aren't watermelons. We're durable creatures. Doesn't mean you should go for KOs where possible, just means it's not the shrieking death sentence it's being portrayed as in this thread. There's risks associated with it. There are risks with body shots too. There are risks with any type of serious fight. A well-placed hit to the chest can damage your liver and kill you. A strong enough hit to the back can cripple you or make you walk with a seizing limp for the rest of your life. Who knew that you could hurt people when you're throwing fists?
So you argue that a KO by punch to the head isn't potentially having chronic effect because... other types of hits have chronic effect. (?). Or that its ok he punched him cause he could cause chronic physical harm otherwise too. (?). Man, there is really a messed up "you got what you had coming" mentality, for small (or should i say tiny) fish like some moron nobody wannabe-nazi, when all sorts of ruin is caused by people who happily present themselves as saviours of the public and speak of los deplorabilos

Reminds me of the ending paragraph of Animal Farm. In the end... one could see no difference between the sides.