Media piracy is in the tradition of oyster piracy (stealing from landlords trying to control the oyster market) and the golden age (robbing the Spanish silver train that was exploiting the nations of the new world) in that it's crime against unreasonable state regimes.
This is not to say underground media sharing has always had the moral high-ground, and it's not even to say that fair copyright laws are unreasonable, but since the mid 20th century (since Disney, essentially) intellectual property law has not served the public in a community effort to build a robust public domain of ideas and content, rather has been used to do the opposite, to favor established businesses over new ones with complete disregard for the public.
But then there's the technological matter, where DRM is used to obstruct of sharing (reasonable or otherwise, legal or otherwise). Here in the states it's legal to use DRM to obstruct legal backups and sharing, but it's not legal to bypass DRM to facilitate legal backups and sharing. It shows us that our regulatory agencies are captured, that our government serves rich companies and plutocrats rather than the public. The law runs contrary to the social contract.
We are in an age in which our language (English) only has words for wrongdoing that acknowledges two authorities: Sin (wrongness against the Church -- allegedly against God) and Crime (wrongness against the state, in accordance to what laws are enforced by a legal system). When we talk about other entities that can be wrong, say, individuals, the community, the world population, ecosystems outside of human society, we have to make do with the words we have, e.g. sin against nature, crimes against humanity, and so on.
Intellectual property law is a construct that (according to the Constitution of the United States) was intended to do a thing that it has totally failed at, going as far as creating perverse incentives to misuse the law. And given the companies that produce the media we might pirate are poor at compensating artists and developers, or at recognizing licenses already established (say, your DVD copy of Ghostbusters when the new medium emerges), given they pirate each other's content shamelessly, and will steal yours outright if you can't outspend them in court, it has actually become more ethical to pirate content than to buy it legitimately.
But I'd teach my kids not just to pirate, but to recognize shoddy work from good work, and to not consume at all when they can, since consuming content benefits its producers, whether or not it's acquired legally. (The MCU is about hero-team organizations who defend the status quo from all enemies, including the far left, and including those who want the human species to have a future. So they're not really our heroes, are they? Batman runs around and beats up poor people, leaving the wealthy to continue to rule over the rest of us whose last resort is crime.
If we're going to consume content, let's use it to inspire the content we make ourselves, until commercial content is entirely unwanted and unnecessary. This is the future the MPAA and RIAA fear. Not everyone pirating their stuff, but everyone not bothered to pirate their stuff.