It is just amazing, the level of ignorance it takes to have such a mentality. When will people learn that it is not the breed that is to blame, as much as it is the types of owners that are responsible for the actions of these dogs. So many people want to get a dog based on its appearance. It bothers me so much to hear people talk about how (insert breed) is sooo cute and they want to get one. Well, why don't you do some research on the temperament, grooming requirements, energy level and exercise requirements while you are at it. I think with the bully breeds, the mentality of many ignorant owners is that they want a "tough looking" or "mean looking" dog. There is no further research done than the look of the dog.
I swear, people should need a license to breed and should have to pass a test to own a dog.
And, Stella, you hit the nail on the head.