OK. I’ve never heard of it before but I’ll bite. What is Jewish about the pornography aside from whether or not the stars are circumcised? What is the distinctively Jewish nature of this supposed to be?
You say it’s a recent phenomenon so I’ll take your word that this exists someplace outside of paranoid fantasies..
"Jewish pornography" merely means porn which secular Jews create or participate in; it has no Jewish theological element. Unfortunately Ted Pike (mach shemo!) has found a debate in the Talmud about whether Jews are culpable for bestiality and from it derived a Talmudic "authorization" on which to blame all Jewish participants of the pornography industry. And btw, the opinion cited was the opinion of one man who was overruled by all others in the debate.
Not being Jewish myself and thus unfamiliar with the Talmud I will refer you to Jewbacca.