"It's time people - of all stripes - stop trying to make everything out to be 1 or the other (usually, these mealy-mouthed days, it's "environment" and "love", not genetics! oh no!), and recognize it is a FACT that any living individual is basically HALF GENETICS, HALF ENVIRONMENT."
Selling dogs is big money...and the high risk dog industry will fight the relationship of Genetics vs risk to the death. The concept of liability for breed ownership decisions would be devastating.
I warn you, I am against breed (or type) -specific legislation.
But I don't have the wool over my eyes about genetics.