I think this touches so many guys because we've all been there at one time or another in our lives. The difference with this video is how it's presented.
The animation allows us to reflect images of our own struggles growing up. The anger, the hurt, the pain. Oh yeah, it was all there and even now as we grow older, we face the realization that those hurts are still deep inside of us and seeing a video like this causes them to surface, bringing along with them the tears of emotion that in some way we hope will wash away that pain forever, but knowing that it won't happen. Instead the tears subside, the pain returns to that hidden place deep inside until another reminder starts the cycle all over again. We put on our happy faces and go about our daily business. Another day.
Bullying really does cause a lifetime of agony for many.