But people can store data on themselves on their own PC of course. I don't see how GPDR affects that. I don't want a GPC that sends personal data back to the mothership anyway.
It's incremental. The companies covered by the EU's GDPR are untimately comprised of people too. It's easiest to start with a subset, and the GDPR is no exception to that rule.
Ya lost me on the reporting to the mothership thing, that is definately what many power centers would like, for example, non-DRM 3D printers that can cheaply print metal objects will be reserved for criminals in countries controlled by repressive regimes because they can make effective life saving tools.