If my dogs ever tried to kill me, I’d just pin them both down. That’s the benefit of not having insanely powerful dogs.

IMO you shouldn’t have a dog that you can’t physically restrain. Any dog can snap and you need to be able to physically stop them if that happens.

So huge dogs should just remain ownerless?

I agree in the sense that some dog breeds aren’t necessary and are actively unhealthy for the animal and the breed should be allowed to die out removing the ability for people to be owners of those breeds, and therefore ownerless