I mean, properly trained large dogs can all be like “a loaded gun”.
The difference in other breeds being you need to teach them to do that, whereas dogs which were literally bred for blood sports have to have it trained out of them. (Also some small dogs are actually attack dogs, like the Chinese place dog or whatever. They were worn inside your robe and let onto an opponent. Sort of ancient pepper spray level equivalent as a weapon.)
The problem comes because the least able and least willing dog trainers, who actually pretty much would rather have a gun, get dogs bred for blood sports.
It genuinely wouldn’t take a huge focused project to breed out the more violent urges. A large one, sure. It’d be different breeding than the ones done just for physical traits, but dogs are extremely adaptable and it can be done.
So to preserve the breeds; committee, regulation, organised effort. Yes I know it’s too much to do but it wouldn’t be impossible if the will existed.
