The other day I was talking to a friend who served in Vietnam and he said something kind of along the same lines. “I don’t get these people who want to kill other people; their fellow countrymen. I’ve done it and those guys were trying to kill me but it was bad enough that I don’t ever want to do it again.”
Personally I’ve never experienced that. I hope I never do. People that wish for such devastation are extremely ignorant at best and malevolent at worst.