Earlier quoted context omitted.
There is no "just be watching". If you watch a child getting raped, you are committing a crime and better have a very convincing argument why you had to do it. It is in fact that simple. Of course they need help, too. We need both prosecution and prevention.
If watching a crime is a criminal offence, you better lock up the viewers of CNN, Fox News, and the BBC. I do think their ought to be laws against the distribution of this kind of material (there probably are?), and there is no question that producing it is a criminal offence, and should be prosecuted to the fullest extent of the law.
On a different note: There is nothing wrong with regulating how footage of crimes can be shown to protect the victims and even the offenders. I know this argument is hard to make on HN, because free speech, but I think privacy is an important right, too.