That question has been answered: we have had plenty of piracy for years now -- and do we still have plenty of film/TV/music/book production? Yes!
So piracy (at least, as we have known it) is not harmful, in fact it seems almost certainly beneficial economically -- more goods are more widely available.
So piracy (at least, as we have known it) is not harmful, in fact it seems almost certainly beneficial economically -- more goods are more widely available.