I'll ignore your last question, as I don't see how it relate to me, or anything I said, and so don't understand why you asked such a question.
The person in the video is not the only person alive, so I am failing to see why that has become your focus.
The point is, you don't know who is hurting, or being hurt, so to say that something is okay so long as it is not hurting anyone would be meaningless.
It's like me saying, it's okay to drop the bomb, so long as it's not hurting anyone, and I don't have a clue of who may be hurt, whether in the immediate area; a distant area; the near or far future, etc.
I just need a good excuse for dropping the bomb.