Granted, there is no point in jumping half cocked into a situation where you might end up getting stabbed or shot, and not do anyone any good. On the other hand, the sort of bullying shown in this video could easily have been stopped by nearly any college age adult with a half an ounce of confidence. People choose not to step in, not because of any reasonable fear of personal harm, but because of a kind of psychological and moral paralysis, which may be the subject of my next blog.
The decision about when and how to step in in more dangerous situations is a thornier question. I think I might do a blog on that as well.
In the meantime, I hope this video has given you some cause to think.