What has nurture got to do with a dog bred to fight or guard when its breed standard to be aggressive?

All dogs have a natural instinct of one kind or other. It's been bred into them for generations and just like humans, we have a natural instinct to act certain ways. Like personality traits that aren't inherited through interaction with our environment.

A pit bull may be really friendly (i like all bully breeds) but the owner needs to take caution to train the dog properly to avoid aggressive behavior. For example, if you take a beagle to the beach he'll ignore all commands and seem oblivious to the existence of a world around it. I'm not sure how to really explain anything else but I hope this atleast helped you.

I totally agree with you.

If dogs are bred solely for their physical appearances, the breeds will gradually lose their abilities to function in the work the breeds were created to do. For some people, this is a good thing. Example, a herding breed with absolutely no herding instinct would probably be an easier pet to live with than one with tons of drive and energy.

But IMO, that breed would no longer be worthy of its name. There are some breeds with "show type" and "working lines" that are separate, as well as others in which a dog from working lines can also be a top show winner. Dogs' personalities are shaped by how they are raised and trained, their breeding backgrounds, and what the individual dogs are born with.

There are differences in breeds and there are differences within breeds. Virtually all dogs do their best with a kind of training that emphasizes what they did RIGHT.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.