In 1790, copyright term in the US was 14 years (if registered) plus 14 more years (if renewed), for a maximum total of 28 years. As of 1998, the copyright term is 95 years after publication (or 75 years after the author's death). So if creativity is equally as difficult now as it was in the past, I would ask why copyright terms have been so substantially expanded.
It's also worth pointing out that, since the vast majority of works generate almost all their profits within the first few years of publication, such a lengthy copyright term primarily benefits rights holders of the extremely elite set of works that remain popular after decades of publication. In practice, this mostly winds up being companies like Disney, Sony, Universal, and so on. Meanwhile, the group that is most directly harmed is not the public in general, but everyday artists—who are less free than they were in the past to build on previous works, remix them, or use them as supporting elements in a larger project.
Consider that, whereas consumers wanting to enjoy an older (let's say WWII-era) work usually face a choice between paying a small fee and getting an unauthorized copy somehow, creators face a choice between enduring a difficult and extremely costly licensing ordeal or opening themselves up to substantial legal risk. Creators often lose heart when faced with this dilemma—and many projects, at least a few of which would probably have been great, will never be made because of this.
Disney's Sleeping Beauty (1959) could not have been made until 1986[1] if the current rules were in effect (The ballet it was based on was from 1890, and copyright is 95 years).
That's my go-to example for why this entire "creators vs consumers" narrative is so bogus. Copyright today is no less of a lottery ticket than getting noticed by the Medici family was 100s of years ago.
1: In theory they could have licensed it, but I suspect a theoretical person in charge of maintaining the dignity of Tchaikovsky's works might have balked at giving Disney free reign to make a cartoon version and add lyrics for children to the instrumental music. Also, I don't think a ballet writer would feel particularly incentivized to know that someone would pay their estate to make a cartoon movie 60 years after they die.
It's also worth pointing out that, since the vast majority of works generate almost all their profits within the first few years of publication, such a lengthy copyright term primarily benefits rights holders of the extremely elite set of works that remain popular after decades of publication. In practice, this mostly winds up being companies like Disney, Sony, Universal, and so on. Meanwhile, the group that is most directly harmed is not the public in general, but everyday artists—who are less free than they were in the past to build on previous works, remix them, or use them as supporting elements in a larger project.
Consider that, whereas consumers wanting to enjoy an older (let's say WWII-era) work usually face a choice between paying a small fee and getting an unauthorized copy somehow, creators face a choice between enduring a difficult and extremely costly licensing ordeal or opening themselves up to substantial legal risk. Creators often lose heart when faced with this dilemma—and many projects, at least a few of which would probably have been great, will never be made because of this.