Eh, it's a constant battle in pit bulls, but you yourself advocate the cold nature of most pit bulls and their right to dog parks.
Red boy has tried to kill whitey a few times over stupid things. Whitey doesn't like to fight.
I've had a lot more of my pit bulls have behavioral issues due to environment than I've had who're born with an innate enjoyment and drive to fight and end.
It's debatable if pit bulls like to fight or not. The point is they are too good at fighting. They're efficient and make quick work of their opponent.
It's more important, ime/IMO, to advocate preparedness than spook stories. Some dogs will never have an issue but the moment they do it could easily be life and death.