how is this justifiable?

That is nothing compared to how the train dogs in Europe you would throw up at how brutal, and in humane as well.

lance

Dogs are NOT wolves.

Wolves are wild animals.

Dogs are domesticated animals that have adapted to a domestic way of life an interaction. The pack dynamics of wolves and the pack dynamics of dogs are similar, but NOT the same.

I'd like to point out that the guy in that second video hauled that dog around by it's HARNESS to get him to let go. NOT his scruff. That is why these dogs wear harnesses. And for dogs responding in a very high-charged, reactive atmosphere and trained to respond in such an aggressive, reactive manner, they listen surprisingly well.

I do not agree with alpha roll tactics, particularly when training adult dogs. If you do not know what you're doing, you could be setting both yourself and the dog up for potentially dangerous failure.