In my opinion,The Prohibition of downloading music and films: Would not uphold our moral pillars. Because based on the history in the United States, prohibition of anything does not uphold our moral pillars. It breaks down our moral pillars and mocks them. Take the prohibition of alcohol in the last century. It failed. Or the prohibition of marijuana, again failure. Telling people that they can't have what they want does not stop them from getting what they want.
Centering on holding the ocean back with a broom is probably an unwise use of legislation. The internet is here, and it's here to stay. The mass sharing of knowledge was eventually going to lead to the mass sharing of media. Its always been that way, people share media with their friends. Pre-internet this didn't frighten business, because most people's social circle would only include a handful of people, now with global mass communication, it isnt uncommon for people to be part of social spheres consisting of thousands. Rather the market needs to change to adapt to the future.