I haven't figured out a way to push this narrative in any meaningful way. People have a hard time distinguishing arguments against copyright from arguments for copyright reform. Most of the time I have to stress that I'm not for copyright abolishment but more reasonable copyright terms and extension protocols.
One tradeoff is to have the fee be proportional to the revenue it is generating. But this could encourage extension-by-default, rather than making it an intentional decision the copyright holder has to make: Is it worth "buying the monopoly rights." I think I would be ok with that if the increase for future extensions was steep. But that does also come at the cost of the second part,
> that doesn't become popular until later
You have a small-time creator that doesn't extend, and so loses out on massive potential revenue derived from future popularity of the work decades later. This would be unfortunate ... but on the other hand I think society would be more likely to make this true and create interesting derivative works if there were more works that were derivable. You need to keep durations short to make that happen.
Every 10 years, declare that your work is worth $x, then pay a renewal fee of $x/10 (or some other fraction based on more solid economics).
If anyone volunteers to pay more than $x in place of your $x/10 your work is now public domain.
I have a much simpler solution: copyright terms are fourteen years from date of publication. There are no extensions.
It could even be a lot shorter nowadays. Nearly all media gets nearly all of its profit in the first year. A lot of commercial software goes out of date in a few months rather than yearly releases.
It really isn't. It's a temporary privilege of state enforced monopoly.
We are not just balancing the individual creators vs corporations, but also creators of derived works, and societies benefit at-large of more creative works in general. We want to maintain and compensate creators "enough" to maintain incentives for creation, but otherwise maximize the commons.