I don't think it's necessarily true that they're 'wired wrong'. The issue is their power.
They're not necessarily more aggressive than other dogs either, some small dogs can be far far more aggressive, they just don't have the power to cause serious damage....so would you say that those dogs are 'wired wrong?'.
Any dog can snap at any time. I had a small dog when I was a kid who went for me when I wore a hat one day.
The day we got him a labrador viciously attacked him. His owner was in tears and absolutely devastated and said her dog had never once shown any aggression or done anything like that.
but if an XL snaps then people say it's because they've been bred with the instinct to kill?
We'll see in the next few years when people are breeding the biggest cane corsos etc possible but I'm sure that there's still going to be fatalities.
I'm sure that girl didn't train her dogs to be aggressive either and apparently she babied them, but they're not supposed to be babied either. Of course an owner should love them and be kind but they also have to show them who the leader is.
I'd never get a big breed which could weigh more than me because I know I'd probably be the same as that girl and baby the dog but that would make me a soft and weak owner for the dog and that's not what they need.
Obviously a kind soft owner is better than an owner who teaches them to be aggressive, but that's still not the best kind of owner or the owner that those dogs need.
My daughter is a lot more firm with our dog than I am and he seems to love us both just as much but without a doubt he respects her more and listens to her more.