And this kid gets owned.
In spite of that there is very little question of who the alpha is in this scenario, the humans involved don't really seem aware of it -- "that stupid dog," you say, camera person? More like stupid like a fox... or something. At any rate, this dog just outsmarted everybody in this video and came out looking like a badass, while this kid fell of his sled and screamed like a chump.
Yes, young man, you are right to hate that dog. As Yoda once observed, anger leads to fear, fear to hate -- and you must fear your master.