That's a very short term analysis. Again, drugs don't just drop from the sky. Unless there's an alternative funding model, people copying drugs for free means the firm that did the R&D to make the drug goes bust, and won't invent future drugs that would save even more lives. Until the number of untreatable diseases tends to zero, making sure drug firms survive is a much higher long term priority than saving a few lives now.
>Authorship is scarce, but copyrights only indirectly relate to authorship. They are an attempt to encourage authorship by restricting society.
All laws are restrictions on society.
> However, by banning derivative works, they also reduce authorship.
No, it only bans unlicensed derivative work. See all the recent "Tom Clancy's XYZ" novels, or the new Bourne novels, or the entire plethora of Star Wars novels and animation. If you profit by building on the foundation laid by somebody else, don't they deserve a cut?
And heck, if someone really wants to author unlicensed derivative work, they can post to a fanfic site. If you've ever read fanfic, or heck, any amount of amateur work, you'd realize why any talent that we find worthwhile is so precious and should be nurtured.
> Empirically, many works of authorship got quite well funded without the support of copyrights.
Correct me if I'm wrong, but historically works got funded was through the means of patronship or commissions from rich people. Not a terribly scalable process.
Yes, we apply artificial scarcity to copies because authorship is scarce. But that's the best way we know how -- that's how economics has always worked. But until we've figured out a better way we should not just abandon a model that's worked pretty well so far.