That's disingenuous, especially with the livestock guardian, rescue, and hunting dogs you listed - precisely because those were the traits selected for when creating those breeds.
Even GSD and Dobermans don't carry the specific risk that Pitbulls do, because their jobs require behavioral traits that are very different than dog fighting.
Yes, all dogs carry some risk, especially large dogs, and exponentially when combined with a irresponsible owner.
Yes, pitbulls can be extremely sweet and affectionate dogs, but that doesn't change the fact that they were intentionally bred to be the best in class breed for dog fighting
Do you believe that pitbulls are the only working dog breed whose characteristics and behavior is completely independent of the selective breeding process used to create them?
Again, I like pitbulls, a lot, but that doesn't mean I can disregard the science of dog breeding.