This makes the reasonable observation that copyright, like other kinds of property, is a social technology. It’s very reasonable to ask if the machine could be improved with shorter periods of monopoly or with a smaller bundle of rights.

I wouldn’t jump all the way to concluding that destroying copyright wouldn’t have ill effect though. The concept was created to incentivize and monetize creative production. There is a Chesterton’s fence prohibition against tearing up the incentive machine without knowing exactly what would replace it.