We're talking about a simple legal definition here - copyright infringement is using some kind of intellectual property without the proper license to do so, whi

We're talking about a simple legal definition here - copyright infringement is using some kind of intellectual property without the proper license to do so, while theft is depriving somebody of their property. This isn't an argument about what's morally right - all that is being argued is that no legal system in the world classes copyright infringement as stealing.