[dendodge]

Avoiding the obvious argument that theft is a poor choice of word for this case, I'd like to question whether we actually treat intellectual and traditional property as similarly as IP proponents like to claim.

If you sell me an antique chair, I'm free to upcycle it, transform it into something new, and sell it on. I'm free to examine it and build an exact replica. I can give my chair to whomever I want and let any number of strangers sit on it. Such is the nature of property.

If you sell me a song, I must keep it in your proprietary system, leave the DRM intact, and definitely never even think about remixing it and selling my derived works.

IP is not property, it's a distinct beast of its own. It can't be "stolen" in the traditional sense, and it seems it can't really be bought or sold either.