It doesn't matter if blockchain allows you to break the law. You are still breaking the law and punishments exists outside of the chain.
Blockchain enthusiasts get confused between "a solution" and a "better solution". A car with an airplane propeller engine is technically a solution that solves a use case of getting a person from point a to point b, but is it the best solution when compared to current cars? Right now the crypto industry is slapping all sorts of stuff on and then just because their car makes it down the street, suddenly they think somebody in africa who never had a car before will want it.
The use case you describe has been beaten over and over in crypto over the past 5-7 years. DRM. Its old news. But no major company wants anything to do with it. Its a social problem not a technical one.
Blockchain is an engineers wet dream. Infinite solutions that make theoretical sense and the math works, but lack any way to solve the current problems better.