Dobermans
Rotts
Pit Bulls
German Shepherds
Chihauhuas (those things can be mean!) lol
Not every owner is as objective as you when it comes to their dogs. And not every owner (too few in my experience) works at training their dogs. There are some dogs that are just too dangerous to be owned 'casually'.
After dealing with German Shepard's for many years, it's clear your list is created out of glaring ignorance.