Do you really think that vanilla sex is the only kind of sex kids have seen through the centuries? Then you are sadly mistaken. Children have never been as protected from the less appetising aspects of adult life as they are now, generellt speaking.
Children have witnessed coercive, violent and lethal sex in almost all cultures throughout human history. In reality. Up close. And they have far more often been the victims of such sex as well, routinely, as slaves, or in wars, and in initiation rites, or just for fun. The protectiveness we (as a society, there have always been individuals who have cared) feel today is wonderful, and it makes me happy, but the greatest harm done to children is done by other people much closer to them than images online.
Do I wish that porn was less ubiquituous? Yes. But the moral panic is in my view way over the top. Whenever there is a new kind of medium, we panic - cheap mass produced books? Panic about the effects on young minds. Moving pictures? Radio, television, video? Same, same, same. In Sweden we had the very specific dansbaneeländet (yes, Darat, you bury it in a peet bog for 400 years before you eat it), ie public outdoor dancing in summer, which would surely guarantee that a whole generation would be utterly morally corrupted. And now the internet. I think we should be careful and monitor our kids, just as we should always be careful and monitor them, and as I have said before, be extra careful about what they are subjected to on social media, which can be a cesspool of potential harm.
I am not trying to argue that online porn is beneficial, just not necessarily something to get in a tissy about. Especially since our attitudes towards sex are changing; we discuss consent far more than just a few years ago, rape is no longer acceptable in relationships, nor are we now as quick to blame victims of sexual abuse as we have been. All this will benefit children as well.
Am on my phone, with Swedish predictive text on, so sorry about any spelling or grammar atrocities. (How nice it is to have a good excuse for once!)