From what I have experienced in college so far is that either a student has experienced something or not, and the students who have not experienced something are the ones to protest. Students who have not experienced racism or Genocide-from the article- only know it from what they learned in school, online, or some other medium. So when they think they hear something that is about those "things" they jump up and go crazy. The last part of the article is what I am mostly talking about.
I could also talk about the first part too, like the video of the girl yelling at Nicholas is so interesting. You want to stand up for something, yet you cannot have a conversation about it and just yell at the man?