Not sure why, since the average voter won't be affected by this tax. Only the media companies. In fact, most voters would benefit greatly by having unlimited legal, free access to a vast library of content that is still relevant to them.

And, it can be morally justified -- if someone is sitting on the rights for a work, and isn't using it, then it makes sense to levy a tax against it as they are utilizing the expensive resources of the world governments in order to defend the copyright.