

I don’t like comparing animals to humans, domestic animals have been selectively bread for centuries for various traits, both physical and psychological.
The history of pitbulls traces back to Joseph L. Colby, a professional dog fighter. They would selectively breed the most vicious and game dogs. Game meant that they would keep on fighting even with serious injuries.
Here is a book from Colby about breeding and fighting pitbulls (serious CW: animal abuse)
https://babel.hathitrust.org/cgi/pt?id=uc1.%24b28129&seq=1
When dog fighting was beginning to be outlawed, that’s when pitbulls started to be promoted as family pets. The curret advocacy for pitbulls is some multi million dollar industry ran by former Scientologist members, who don’t even own pitbulls themselves.
I will agree that pitbulls are a class issue, shelters are full of pitbulls, and dogs from breeders are expensive. Not every pitbull will snap, but there are so many stories about vicious dog attacks, that leaves horrible injuries, mostly to children and elderly. The statistics shows that they are mostly pitbulls or pitbull mix. There are certainly other vicious breeds out there, like Dogo Argentinos, but these are rare and expensive so they aren’t very prevalent.
it’s bigfoot!