What was the last movie you've watched that entered the public domain? I bet not a single person on this site will see that happen within their lifetimes.
The fact is copyright monopolists have systematically robbed us of our public domain rights.
Copyright term duration is about society. The truth is copyright is bullshit. Artificial scarcity is exactly that: artificial. It's a lie. Society is doing creators a huge favor: we're all pretending the creator's works are scarce. We're pretending we don't know how to make copies. We do this so that they can make money from their work. And we're doing it with the understanding that after a while the work will belong to us all. It will no longer be the creator's, it will become part of our culture by joining the public domain. Public property.
The longer you make those terms, the more unfair it is to the society that enabled the creator's business in the first place. The more unfair it is, the less reason there is to uphold the original social contract.
This arrangement must be tolerable for society. This eternal rent-seeking monopoly bullshit will not be tolerated. One day society is going to stop pretending and these monopolists will understand that everything is public domain.
It's already happening. See Sci-Hub.
My point is that copyright is to incentivize authors to produce work but if it's limited by the author's lifetime, then older people will be incentivized less than younger people because they won't be able to sell the rights for as much money because they'll expire sooner. We don't particularly need work created by young people more than old people, so why incentivize it that way?
I'm all for keeping much of the current copyright regime around, including extending the term to some reasonable period after the author's lifetime. The terms need to be reasonable.
Copyright is granted by society. It should be based on give and take. Historically "normies" haven't paid any attention to it and the only parties who have had any say have been those who had a vested financial interest in increasing copyright terms. It has been a "take and take" relationship.
Preventing works from entering the public domain also has a "pulling up the ladder" effect. It prevents new works based upon older works from having economic value. The Walt Disney company's success and subsequent lobbying to extend copyright terms is a particularly galling example of this to me.
I'm not sure what you mean re: "...maybe forever (like indigenous culture)." Are you suggesting that making works that are derivative from indigenous cultures should be prohibited? At some level all of our stories are from the "indigenous culture" of all of humanity. There are no new stories under the sun.
For patents, it's important to ensure that ideas become available for everyone else to enjoy despite giving a monopoly to the inventor. That's because an invention may be the best way to do something and we would be worse off if we couldn't use it. Copyright, on the other hand, doesn't protect anything fundamentally important. It's just individual products of human creativity. If you want a cartoon animal, you can always create your own without having to build on Mickey Mouse. The protected ones don't really matter except that they've been pushed into popular culture and people have lapped them up. We could do our culture in a way that doesn't suck at the teat of industrial culture-generation factories like Disney if we didn't want the impediment of copyright.
So I don't think your argument about give and take is really convincing. We could even have infinite copyright and the world would get along fine. If some obnoxious copyright owner enforced their rights to strongly, somebody else could create an equivalent work that was just as good to replace it.
I don't think they'd do it without copyright though, as evidenced by the fact that almost nobody does. Even open source developers still use copyright to restrict distribution (GPL) and amature artists demand credit (CC-BY).
