Ignorance is bliss. You show one scary incident and people freak out. They don't take the time to research the breed or to look at one specific dog. They just lay judgment.
There are horrible people out there who train (and don't take the time to train) dogs of ALL breeds to do bad things. Keeping a large, dominant breed and not providing it with leadership and training from a young age can be just as detrimental as training one to attack.
The bully breeds were singled out because they were owned by trash and taught to kill, plain and simple. People aren't willing to take the chance that they all aren't like this. Those of us who own pits and pit mixes know differently.
I own a Pit mix and a GSD. My in-laws swear that the GSD is going to eat our children. They don't want anything to do with him, won't hardly look at him, let alone touch him when they come to visit. I think it is sad. Yet one of them owns a terrier that has bitten three people in the 5 months she has been adopted. She's nasty and fearful and quite a mess, but it's okay 'cause she's little and doesn't know any better. The GSD is big and goofy and all about getting petted and played with. He has no idea that he's 80lbs and can't understand why you don't want him in your lap all the time. Yet, even as they watch him lay outside the bedroom door and watch over "his girls", he's still a killer and will for sure get them one of these days.
Who knows why people think the stupid things they do. No worries, you know you have a great dog and that is all that matters.
Best of luck to you.
vet tech 13 yrs.