Kendall here,   I have had many dogs over the years, and, although I have never owned a pit bull or a Rotweiller, I have been around these breeds. My brother had a pit bull, and she was as friendly and gentle as any Golden retriever I ever met. I believe it is not the breed, but rather the owner who is to blame. I don't know where Gypsy lives, but in my part of the country, that idiot dog owner would be short one dog in a case like you just mentioned.
One of my other brothers used to walk every day, and he always carried a golf club. A woman asked, "what is the club for," and he said "dogs". She said "That's cruel" he said, "not if they stay on the f*****g porch"