They are. And I say this after attending a dog park 3x a week for the last two months, that has 40+ dogs at it, every day. So that's a huge spectrum of dog breeds that I have monitored. While there have been some Pitbulls that were just as friendly as all the other breeds, it has *always* been the Pitbulls that ended up losing temper, or viciously attacking one of the other dogs out of thin air. I can say this honestly, as I went into the situation having no negative opinion of any dog breed.
It's never the cocker spaniel that is viciously snarling and pulling at its owners leash, fangs dripping with foam and saliva for absolutely ZERO REASON. It was the Pitbull doing that. The owner even had the lack of brains to complain that there were so many dogs off their leashes around his violent angry dog. As if the off-leash dogs were the problem, not his Pitbull that wanted blood. People are strange.
I read the other day that Pitbulls were manually selected for breeding *based on* aggressive traits. This isn't something that should just be ignored out of political correctness, or fear of offending people. If you breed for cuteness and sweet disposition, you're going to end up with a line of dogs that are cute and sweet. Not all Pitbulls are aggressive and mean. But the breed that has had the most problems at the park has consistently been the Pitbulls.
Makes it kinda hard to ignore the "stigma".
-B-