Are we talking about the pornography industry not being displaced by amateur porn?
But how would that happen? Even if, somehow, copyright could be enforced and people wouldn't just pirate "industrial" pornography, who's paying for the network infraestructure? "amateur" porn it's a thing due P2P networks, so any commercial pornography would need a way to make money by using P2P. The alternative would be to stream SD video (because, really, who would want to pay for less than dvd quality on this day and age?) directly from a server farm and the costs of that... it simply can't break even, financially speaking (which is, at the end, why we can see pristine full HD movies by renting blurays at Blockbuster but porn is crappy cell phone resolution video). Any business trying to set up such a business model will go the way of youtube: shunned by investors who saw it as the second coming of the dotcom bubble, unable to turn a profit and filling for bankruptcy.
And we aren't even talking about secure payment methods over the Internet, which barely begun to take off by the early 2010s. How would the porn industry expect people to pay for their products if that wasn't an option before the advent of digital cameras and homebrew porn?
IDK, maybe the POD would have to make the Internet more popular to the general public long before cheap consumer grade cameras allowed people to share their naughty bits over P2P? But even then, we're talking about crappy 56k dial up internet, unless you can also speed up the very expensive deployment of broad band internet and its more comfortable 3 Mbps which are the norm today. But, again, that's a massive economical investment.