Incorrect. The modern industrial revolution and most wartime militaries demonstrate far more ability to do this.
> and having the ability to generate endless amounts of it completely privately is a very dangerous power to have.
I mean, anyone can pick up some artistic skill and do this without a computer. Everyone really can have this "very dangerous power" if they want to. Your statement is only valid if sex or pictures/text of sex is intrinsically harmful, which is untrue.