>Still, it is "fake" prohibitions. There's literally nothing but arbitrary law and DRM preventing the free distribution of an already-digitized volume.

It's only fake from a very narrow view of the world. It's not a technical limitation, to be sure, and I personally despise DRM and the copyright law, but those things are not fake. They exist for reasons, and even though people like you and I disagree with those reasons, it doesn't make them any less real.