That's the issue, how do we know how much is required to create new works?If new works are still being produced - and right now, they're being produced more than ever - we know there is enough.
perhaps more money would also create better new works?
Define "better work".
I would also assume that piracy is not necessarily uniform, something popular with a younger more tech savvy audience would be more likely to be pirated (I assume at least).
Possibly, but again, I don't find that relevant.
We have legal coercion to do many things , for example to pay taxes or honor contracts that you may have signed (including EULAs etc). Not sure why this should particularly be different, you need some method of enforcement otherwise you would be essentially running an honesty system.
And we also don't have legal coercion for many other things. Fashion, for example, does not rely on copyright and still manages to be a vibrant community of creation.
Legal coercion should be reserved to when it's actually necessary. I'm not convinced it is in this case.
Very few other industries can exist purely on what would essentially be donations so not sure why IP should be different.
(I don't like the term IP. I'm talking about copyright.)
Show me another industry where the marginal costs are essentially 0. Music, movies, software, etc creation is different from most other industries for that fact alone.
A counter question to this; If you create a piece of IP then what additional rights should you have over everyone else? Should somebody else be able to use it for something you might deem distasteful without your permission, perhaps misrepresenting your views in the process?
Yes, they should be able to use it for something I might deem distasteful. I don't like censorship. If they misrepresenting my views, then they're defaming me. I don't need copyright to protect myself from that.
Should somebody else be able to take credit for your work?
No, because that would be fraud. Again, you don't need copyright, just basic consumer protection.
For example say you write and record a song and a large company with more resources than you decides to take your song and have somebody else perform it and they make serious money doing this do they owe you anything?
Sure. In fact, if more money alone makes a better song, I question the artistic quality of that work.
Or if they decide to host your work on a website with adverts (essentially what TPB did/does) do you have any right to a portion of that ad revenue?
No, why should I?