Yes, it does. I've had one pet mauled by a pit bull and I've had to kill one in the street to prevent another attack.
While "responsible" pit bull owners may exist, I've never met one. Without exception they were scum indifferent to the danger their animals posed to the community.
Agreed about the “scum.” But they’re worse than indifferent. They’re intentionally causing problems. They get a thrill out of having an animal that will risk harm to others.