ok, sorry about the American remark, but it is only America that has this 'anything goes as long as you don't get a boner' mentality, or at least you started it in America.
The parents know that if those girls posted videos of themselves having lesbian sex instead of beating the shit out of each other, that a/ they would probably both have feds round their houses the next day and the girls themselves put away as sex offenders and b/ that any webmaster such as Scott who posted such a video would be looking at 500 years of jail time ass rape for distributing child porn.
I haven't read of a single politician even raising the issue of the morality of these videos and yet in Europe they are trying to make it illegal to look at pictures of 17 year old 'children' in bikinis (I think that's already the case in America).
Everything we speak, think, feel or do is related to sex and the reproduction of the species. An anthropologist from Mars would just have to spend 10 minutes reading Nothing Toxic comments to realise that (or glancing at the American legal system).