I could not bring myself to watch the video, either. I have a difficult time watching innocent children be abused, whether by adults, or other not-so-innocent children.
When I see things like that, I forget how to strive to be Christ-like... and want to retaliate.
I told my wife years ago that if I ever saw a man strike a child while we were out in public, she better get the lawyer and bail money ready, because I was likely going to jail very soon. I cannot, and will not, abide abuse of the innocent, or helpless, either young or old.