This is unbelievable and horrifying. A dog’s temperament is based on the way it has been raised and cared for and there are no “mean” or “bad” breeds. One of my dogs is a German Shepard mix that we adopted from a kill shelter and originally, she was reserved and temperamental because of the abuse she had previously endured. Now, 8 years later, she is a gentle and loving companion. Some of the best dogs I have known are among the breeds mentioned and this movement needs to be stopped.