From 2005 through 2017, pit bulls or pit bull mixes accounted for 284 of 433 of the deaths due to dog bite in the United States - 66% - according to dogsbite.org. They accounted for 29 of the 39 deaths in 2017. Yep, I bet there are good ones out there. There are probably crocodiles on the Nile River that wouldn't dream of eating a person, too. This doesn't mean that you get to say pit bulls aren't dangerous any more than you can say crocodiles aren't dangerous.
How many dog breeds are there? Hundreds? Thousands? Yet ONE breed accounts for 2/3 of deaths. I don't give a rat's ass how nice your couch potato is...he or she will be nice until he or she isn't. They should be eradicated.
Of course someone will jump in telling me my source is an anti-pit bull propaganda site. My response to that is only to ask, what is it about that breed that would make so many "propaganda" sites pop up? It's not like the rottweilers are out there coding up fake news sites to take the attention away from their breed.