If I made a movie and Netflix paid me to show it, is it morally justified for you to make a copy of and then give out my movie for free without giving me any money?
I didn't know that Netflix hosts porn now...
But seriously, yes I think making copies and sharing is fine. Introducing artificial scarcity does not make the world a better place, and business models that resolve around creating monopolies shouldn't be encouraged. Plenty of art, science, commerce, and inventions occurred before trademarks, copyrights, patents, etc, and plenty more would be created today and in the future.
If we had reasonable reform to these laws I wouldn't go as far to say that citizens have an ethical responsibility to "pirate" the content you created--just that doing so is not wrong--but the current regime has shifted so far out of balance "piracy" is one of the few forms of civil disobedience available that works to push back.
Piracy is morally correct.