We don't have anti-white-people riots when white men do vile things. We don't deport entire families when one white immigrant does a vile thing.
"Look, some arabs are vile" might well be reality, but is focussing on their race really a useful approach?
Similar things might happen in rock concert crowds in the West or subway trains in Japan, but clearly not in a public square.
Are you seriously trying to claim that not doing it at a rock concert was the most vile part of what they did?
You're arguing my point for me - when white men assault women at rock concerts, people make excuses. When arabs do it in a "public square", people want all arabs deported.
I'm sorry if this confuses you, but certain acts are unacceptable regardless of race or venue. And the reporting should focus on the act, not the race of the perpetrators.