Nor do I. But it can be useful for those who wish to believe that an animal bred for killing for hundreds of years, is safe to have in your home for a pet. For anyone.
Yes. If you cull an animal for aggression through many generations, you can’t predict how genes are going to fall in the future.
I know people who keep these dogs. Every one of them thinks that their dog is loving, kind, will never go wrong.
Unfortunately, those whose dogs have maimed and killed people have thought the same thing - perhaps with years of positive experience to back up their assumptions. And then...