Thirty years from publication.

No exceptions.

Copyright is only an incentive to create new works for the public. For us. Once you've sold it, it's ours. That's what the money is for. If thirty years isn't enough then it's just not gonna happen.

And money is all it's about. Any money involved goes to you. Noncommercial works cannot infringe, unless they're maliciously interfering with that monetary incentive. Even commercial works get a pass, right now, if they're transformative, minimal, or for the purposes of talking shit about your work.

And for new works that do infringe - copyright only exists to incentivize new works. There is no "unpublish." Destroying artistic works is intolerable censorship, full stop. Maybe you get all the money involved. Maybe you get some money involved. Mandatory licensing is definitely the right idea for streaming, to unfuck that anti-consumer shit-show. Why not derivative works? All you suits care about is the money, anyway. Take your check and mind your business.