First of all this doesn't reflect on all Israelis. I'm sure there are (many) more similar examples, but not all IDF soldiers behave in this way. There are "bad apples" in every society, do you for example think that a sadistic murder committed by a European is a "European behaviour"? And your notion that Europeans wouldn't behave in this way is silly. I would be willing to bet a great deal that if it was Europeans who were occupying Palestine there would be similar events. If you're interested you could look into the psychological experiment "the third wave" and similar studies. BTW just as a little reminder: Europeans behaved much worse than this in WW2.
Iranian parliamentary panel gives conditional nod to nuke deal (Reuters)