I disagree with your analysis.
Before the invention of the printing press, the notion of copyright would be counterproductive, because there was absolutely no way to make money by authoring books. You could make money by MAKING books by hand and selling them, but there was no market for new books. Almost all authors were long dead, and the notion that you weren’t allowed to make a copy of a book you owned would be laughed at…because such a prohibition would obviously lead to the loss of the work as copies deteriorated. Free copying was the only way to preserve a work. In such a situation, copyright enforcement would be downright immoral.
The printing press made production of large numbers of books practical. The government didn’t step in because to enforce copyright, it CREATED copyright because now a new phenomenon existed…the living author who actually made a living authoring books. And everyone recognized that new books were good, and they eventually hit on a method of compensating new authors, because everyone realized that if you want new books you have to have some method of rewarding authors.
But remember, the social goal behind copyright is not to benefit authors, it’s to benefit the public. Benefiting authors is simply the method we have chosen, for various obvious reasons. And as I have said earlier, when copying was done by industrial means, regulation of copying was enforceable. Copying was much easier than copying by hand, but it was still an expensive and importantly a centralized process. It certainly was not free or nearly free to create books, it was expensive. Sure, the marginal cost of one more book wasn’t that great, but the cost of the printing press was, and the cost of getting set up to print a particular book was.
So importantly, no reasonable printer would create copies of books to distribute for free. Sure, some books were distributed for free, like Bibles in hotel rooms, but those weren’t free, they cost money to print, and were distributed for ideological reasons. Books would only be printed if the printer hoped to make money by selling the books. And that commercial motive made enforcing copyright extremely simple. There would only be a limited number of printing presses in a city, and if a store sold bootleg copies they would know where they got the copies, and it was child’s play to track down the copyright infringer, and most importantly, get monetary restitution. And the infringers had a large monetary investment in their physical plant that could be easily seized. And since the whole point of infringing copyright would be to make money, the mere knowledge that infringement was easy to enforce made infringement extremely rare.
Except nowadays none of that is true. Distribution of bootleg copies is not centralized, it costs nothing to produce copies, and people don’t produce copies with the hope of making money, the do it for free because it’s no skin off their nose. In the old days, it would be breaking the law to make a copy of a book, but perfectly legal to let someone else read that book. But nowadays the distinction between listening/reading a work and copying that work is not so clear. Suppose I buy a CD and I play it at my house and my friend listens to it. Perfectly legal, perfectly ethical, right? I can even lend him the CD or give him the CD or sell him the CD. And he can listen as many times as he likes.
Now imagine that I just run a really long speaker cable to my friend’s house, and whenever he wants to hear the CD he calls me up and I play the CD for him. Is that illegal or unethical? What about if I have the CD in my computer, and whenever he wants he connects to my computer and streams the CD. Wait, now he’s broken the law, because you can’t play music on a computer without creating a copy of the information locally. Yes, this breaks the law, but it’s a stupid and meaningless distinction.
My point is that this obsession with “copying” is meaningless in the digital age. Who cares how many copies of a work exist? A million copies on my hard drive of the latest hit single are worth no more than one. I can set up a trivial batch file that fills up my hard drive with copies of that hit single, erases them all, and copies them again, forever. I’ll be violating copyright millions and millions of times. Do I really ethically owe Brittany Spears $14 for each copy I make and erase? I know what the law says, but the law makes no sense in this case.
The whole point of the law is that if I listen to Brittany Spears she should somehow be compensated, otherwise she won’t bother creating new works. Copyright was a practical method of getting a rough proxy of that use, and compensating owners based on the number of copies purchased. And this worked because there was some imperfect but still workable correlation between copying and use, and control of copying was POSSIBLE. But that correlation has vanished. It doesn’t exist any more, and control of copying is impossible. Fighting to control copying is like fighting to keep airplanes and satelites from violating your property rights when they fly overhead.