Can you elaborate?
No engineering required, but obviously a huge change.
I have shepherds and there's a big philosophical split between shepherd owners who want 'working line' dogs and those who want 'show dogs' that are significantly more likely to have health problems. Dog breeding is a very poorly regulated market and the outcomes are just as depressing as you would imagine.
What kind of brain injury do you have to have to go out of your way to want to breed these dogs?
And why the hell don’t / haven’t animal rights activists, and society in general, vigorously pursue regulation to ban these absurd breeds.