You write as if pitbulls are character actors in a drama not of their making. It's not light entertainment.
Do you think governments and animal societies around the world, especially in the animal-adoring UK, illegalise pitbulls as some kind of sop to the public's vividly frightened imagination?
I mean, I don't know, maybe the English legal system had nothing else to then spend a mass of time drafting legislation and passing it: http://en.wikipedia.org/wiki/Dangerous_Dogs_Act_1991.
Clearly you're a pitbull fan. So be it. From where I sit, they're aggressive, dangerous animals, that all too many people train to be more aggressive, and dangerous.