I agree with the points you made. One of the most troublling aspects of the P2P debate is the limited range of opinion.
RIAA and MPAA framed the debate, as primarily property theft, rather then an innovative distribution mechanism. They have reason to fear the Internet is a disruptive technology, scarcity based distribution will not survive. In a previous life I worked at a crypto startup interested in DRM. That experience taught me two things 1) DRM will not work, 2) it is the wrong thing to do.
What isn't being hear are alternatives that take advantage of the potential unleashed by digital technology:
1) Perfect copies
2) Low cost distribution
3) P2P low peak demand - eliminates server farms and high speed net connection
4) Low inventory cost - works never need go out of "print"
5 Closer relationship between creator and patron
I took a shot at what a new distribution model would look like. One that empowers artists/authors reduces prices and encourage rather then punish patrons to do the right thing.
I posted my thoughts; let me know what folks think. We need to prove alternatives work or the incumbents win by default.