What's wrong with enforcing the laws we have? How about the cost of enforcement and the notion of enforcement itself. First off, enforcement of law is unnessesary if the law itself is true and correct in it's application to society. Law is just law and proves it's own usefulness or relevance in the courts. Enforcement is just that, force applied. Second, is the problem of cost. An enforcement of a law that runs contrary to the situations of reality, (like copying being nessesary for the disemination of the content), is a never ending battle against the realities of information transfer. The digital reality is such that in order to effectivly restrict access to information and control it from source to consumer, the owner of the content must have full control of the medium of exchange, ie: the consumer's means and equipment. This is not possible in any way that is meaningful to the property rights of the consumer and the ISP's suppling the means. So, enforcent then falls to penalty after-the-fact, while the real system must allow the breaking of the "law" to be enforced. This is untennable in the long term.
The answer isn't to re-create copyright, but to eliminate it.