You miss the point. It doesn't matter what source it is. If you're aroused by looking at a screen, it's still porn, whatever it is. And it might be even more harmful because cams are even more realistic and interacting, which is not good if your goal is to rewire your brain to the real world. Even dating sites is not a solution
you know, people have been masturbating from the man's origin, from the primate monkeys time. at all times man was looking for an inspiration for this. it was thoughts, pictures, speech and video lately. it is natural to ejaculate. sperm is being produced for expiring. this is the Nature law.