The best thing I can say about the RIAA is that they aren't alone in their luddism - witness the French labels:

Societe civile des Producteurs de Phonogrammes en France (SPPF), an umbrella group for several record labels in France, claims that the four file-sharing applications facilitate mass copyright infringement. Although the companies (and applications) themselves have nothing to do with copyright infringement, SPFF believes it has a strong case.

hTey have a familiar sounding rationale:

The record labels argue that the Vuze and the others are knowingly distributing software with the purpose to permit unauthorized access to copyrighted works. In essence they are saying that everything, or every application which allows a user to share files, will be indeed used for illegal purposes.

Why don't they just cut to the chase, and sue intel, Microsoft, Apple (et. al.) - after all, they knowingly make devices that are used to permit unauthorized access to copyrighted works. Just how stupid are these people? More than you might think:

Interestingly, SPFF is also going after Sourceforge, the open source development website, because it hosts the P2P application Shareaza.

I think the only logical next step for them is to go after Seagate (et. al.), because hard drives are obviously the source of the problem...