Almost all problems with intellectual property, and the illegal and legal copying and usage of it stem from one problem:
The basic framework of classical economics is the theory that people compete for scarce resources. While economists since Adam Smith realized that cartels would try to conspire to increase scarcity if they could manage it, there was also the very basic idea that all goods were scarce by nature.
Intellectual property, which is very economically important now, and will only become more so in the future, is hard to deal with under classical economics, or any of its derivatives, because it is not intrinsically scarce. And yet, the creators of intellectual property, be they artists or businesses, are in need of things that are still scarce, from food to medicine to hovercraft. And so they must make what they create scarce so they can exchange it for these naturally scarce items.
A political, moral and practical way to do this is still being found.