"Authoritarian regimes don't like the individual asserting their rights. Particularly their rights over their cultural works. That's just a fact."
You don't seem to grasp the substance of your own argument.
Culture is shared expression and behaviour. Authoritarian regimes undoubtedly seek to control people's ability to access and express their culture, but copyright does the same thing. They aren't opposing forces, they are the same restrictions, enacted through slightly different means.