I used to work at a day camp in Brooklyn. I once played a joke on the camp director a month before camp started. I called him up and pretended to be from the Parks Department. I said that their permit for the local park would be denied this summer because neighbors complained that the kids made a huge mess, and dumped their garbage all over the street by the park. He didn’t deny it, he just said, “They’re kids, what do you expect?”
The yeshivos are not teaching kids to have respect for non-Jews. They just say “We’re better than them.” and nothing more. Yes, Jews are better, but that doesn’t mean you can treat them like dirt! Derech Eretz kodma l’Torah. It’s time to teach our kids to respect everyone, whether they’re like you or not.