There’s just no need for dogs with massive jaws.
I’ve got a Beagle and if he bit me or another dog it would cause damage but nothing disastrous. We had a border collie cross growing up and same with her.
But having got a mate who has a staffy, although it’s friendly (now he’s been neutered), if that bit me or my dog the jaw size alone would make it a bigger problem. Having played tug with it, you can feel the power in its jaw.
People who own these dogs that are mastiffs, pitbulls, staffies etc. are in some way shape or form attracted to them because of the fact they look a bit menacing. That’s what they are designed to be.
Unfortunately it creates a problem where a) those people buying a dog because of how it looks sometimes have no idea how to handle it and end up with a pretty dangerous dog on their hands and b) those of us that have dogs that were designed to fetch dead ducks, chase rabbits and herd sheep encounter these units on their daily walks that are designed to destroy them and often pre-disposed to be aggressive.