You would effectively have to exit all international copyright law treaties to do so, which is defacto removing any international recognition of copyright for works from your country.
Copyright is covered by the Berne convention, which prohibits neither circumvention nor reverse-engineering, so even in this "what you're proposing couldn't easily be done without also doing this other thing, so I'm going to pretend you've proposed that other thing also, but I won't say so explicitly" interpretation, that is not true.
The Berne Convention has been modified multiple times, including by the WIPO Copyright Treaty, which incorporates a requirement for all signatories to implement an anti-circumvention law.
>"what you're proposing couldn't easily be done without also doing this other thing, so I'm going to pretend you've proposed that other thing also, but I won't say so explicitly"
