It is, and for good reason:
History of the Breed
Pit bulls are descendants of the original English bull-baiting dog-dogs who were bred to attack bulls, bears and other large animals around the face and head. They were taught to hang on without releasing their grip, until they were exhausted from fighting and from loss of blood. Although animal baiting was banned in the 1800s, people decided to try fighting their dogs against each other instead. As the "sport" of dog fighting developed, enthusiasts bred a lighter, more athletic canine. These dogs made their way to North America, the ancestors of today's pit bulls. The problems started when these dogs gained the attention of people looking for a macho dog-and to meet their demands, unscrupulous and uncaring breeders are producing puppies that are not only aggressive to other dogs, but to people, too.
The statement that pits were bred specifically to kill other dogs is a lie. A bold face lie. Emotionalism has nothing to do with anything. These dogs were ORIGINALLY bred to attack bulls, bears and other large animals. Not a damned thing in that article of "history" stating they were bred specifically to kill other dogs. If your comprehension was as good as your rhetoric, you would see further in the article PEOPLE decided to take advantage of the dog's traits and began fighting them. From the beginning of this breed, it has been the HUMANS, not the dogs, that have exploited the strengths of this damned fine breed. Even the ASPCA notes the problem lies with "uncaring and unscrupulous breeders". Tell the truth. You've bought the MSM BS hook line and sinker, Sink. I would bet a fortune the majority of the dogs that attack people or other animals are owned by irresponsible people or are not even full blooded pit bulls but rather some mix (which it is well documented many mixes are branded as pits and aren't).