This is, just to be clear, not remotely how copyright works.
By that logic, I could decide that movie studios have to opt out of me watching their movies for free, and if they don't then it's legal for me to pirate them. See how insane that sounds?
Copyright is automatic and presumptive, and takes effect without any action on the behalf of the holder (this is distinct from trademarks, which have to be actively defended). There is no such thing as "opt out" use of copyrighted works.