Lab, visla, Rottweiler, golden retriever, Mastiff, Great Dane, standard schnauzer, etc etc etc that have bit and killed people. Nope, you ONLY hear about it if it's a pit.
And geez I mean forget about the millions of pits who never ever bite anyone their whole lives. I mean we've got men that kill people so I guess that means all men are dangerous. We've got serial killer women who've killed multiple people so all of us are violent.
That makes about as much sense as what you're saying. By nature they just are not violent and aggressive.