History of the change in the german shepherd over the years

This video depicts the change in the german shepherd over 40 years and how breeding for fashion and show can ruin a breed.I believe the sport of shutzhund has also made the german shepherd fall out of favor for most families. Let me explain nearly weekly I will get a call from a normal family or person at wiits end , they can't control the dog , the dog is very hyper, the dogs destroys everything in the house. the dog is very sharp often described as very nervous. this temper is good for shutzhund but is no longer a good famliy pet- these people tell me they will never get a german shepherd does more harm to the breed then conformation. Temperament is what makes the breed. since 90% of all shutzhund bred dogs go to the family.... whats wrong with breeding a temperament that they can handle? the german shepherd used to be much calmer able to due both shutzhund and be a family pet many still can but lately the drive has become extreme in breeding for the sport we have made a jack russel terroir in a german shepherd dogs do need more drive yes but the etreme aggression? the Grinnell police dept will never get another dog. The dog they paid big money for bit the ear off the offers son! breeding aggression based nervous dogs. has also ruined the breed.