You have lots of points; I don't have the time to respond to each and every one (that's also the reply to your point 6 ;-) )

Overall: the point I'm trying to get across is that copyright must serve society and consumers first, and not rightsholders. If you want to think of it in terms of a transaction: the creator is being hired to provide a service, and that's the extent of the remuneration that should be provided, not more. Secondly, that it's not all or nothing; we could use a shorter copy right (or no copyright, eventually) and encourage creation differently. Finally, there's no question that I'm not going to come up with something as fully fleshed out as hundreds of years of legal precedent; nor even that if people in general did attempt such change with better and more fleshed out ideas that we wouldn't lose anything. But retaining every last specific positive aspect of copyright is an unnecessary bar; the replacement merely needs to have a better net benefit than indefinite copyright (which is the practical norm today). So some of the issues you point out are misunderstandings of what I meant; others are things I'm sure are plain bad ideas, but some are valid, yet acceptable. It's OK to have serious flaws, because copyright has really terrible flaws.

1c: boosting creativity in some cases is laudable... if there were no downsides. But there are huge downsides. And I'm not sure the upsides are worth the downsides at all, let alone a more realistic alternative with a pared back (but still present) copyright with some additional incentives.

2a: no. The statue of Anne was more complex than that. Vested interests (publishers) obviously wanted the control, but to sell it to the parliament and the public, which had interests in the matter, they needed to rephrase it to be in the public interest. And perhaps the mechanics of the act weren't ideal, or perhaps some of the drafters were entirely selfish; but the fact remains that it formally was to benefit "learning" in general. One hint of that is the act's title: "An Act for the Encouragement of Learning, by Vesting the Copies of Printed Books in the Authors or Purchasers of Copies, during the Times therein mentioned" - we now call it the statute of Anne ;-).

3a: mandatory fixed-price licensing: no exceptions. No data, no licensing; i.e. it's in the seller's interest to ensure that data can be made available, as it is in the buyers. This isn't an attempt to cover all bases (e.g. live); but rather to avoid the market distortions inherent in granting control to the licensing person. Literally applied to remixes that would imply that the end-user must pay the full price for each sample used in the mix - but only once, no matter how many songs it's in. You're right, this may not be practical; or perhaps it's usable for a subsection of the problem (again, the point is to explore ideas, not propose a one-sized fits all solution to everything).

3b) Perfect! we're in agreement. Who cares about new? Again: the aim is to slowly pare back copyright, and, where that would lose some of its benefits, to find alternatives that are also beneficial (even if perhaps in different ways).

4) copyright holders routinely deny the permission for derivatives. How many derivatives of windows did you see back in it's heyday? How many derivatives of mickey mouse? The control is absolute, and that is absolutely too much. Finally, and perhaps the greatest loss: people don't even bother trying to remix because it's just so impractical.

5) You don't need to be a legal scholar to use copyright either, and that is largely because people get used to it, and also because when push comes to shove you can hire somebody else that's an expert. Joe Average in some hypothetical alternative could do the same. You're implicitly assuming some kind of radical, sudden, unannounced change, and yes, in that scenario Joe Average would get confused. But not if Joe Average grew up with the alternative, and has lots of friends and examples, and can hire an expert when really necessary. Finally don't forget that Joe Average at the end of the day simply isn't all that relevant here. It's at worst unfortunate if they can't go on using exactly the same business model as before. They'll be new opportunities, to be sure, and a looong transition period (since clawing back existing copyright terms is likely infeasible). The issue is whether it's good enough for creativity without all the downsides of inflexibility and control that copyright has.