So, it’s not actually a corporate narrative, it’s actually the law that the narrative stems from, right or wrong. Maybe corporations had a huge role in shaping the law (I’d note copyright benefits individuals as well, though), but it is not mere propaganda or shaping of a shared reality through corporate narrative. It’s enforced by the guys with the guns and jails, as arbitrated by a judge.
It absolutely must be about the technicalities of the law as it’s at the basis a legal issue. By hand waving it away and claiming the social narrative is the right discussion you ignore the material consequences and reality in favor of a fantasy. We absolutely should -also- discuss the stifling nature of copyright and intellectual property, but you can’t ignore what’s actually happening here at the same time.