The people in the video all show contempt, fear, hate towards the guy because he is a wearing a hoody. They've already decided that he's not worth their time and he's a terrible human being based on his looks alone. You get to see who he really is at the end of the video when he saves the girl.
I think most of us here tend to get judged poorly based on our appearance, or how we carry ourselves, so i thought people might relate.