I haven't, I just didn't focus on software patents because software patents are just one niche within the larger "Intellectual Property" framework. Even if you get rid of software patents, and I can be convinced either way, you're still left with patents in general, and copyright.
>And that's the problem with over-generalization
IP? I think it's a useful abstraction. Patents, software or otherwise, trademarks and copyright all are rooted in the same ideology. Giving a content creator a conditional exclusive right of distribution of a creative work.
No, its not, because you could say "I have intangible personal property rights" or "I have personal property rights", or "I have property rights", each of which is vaguer than "I have IP rights", as IP is a strict subset of intangible personal property, which is itself a strict subset of personal property, etc.
That may be so, but I still claim that there is something intuitive in supporting the idea that content creators be allowed to "own" their creative work. Doubly so if you live in a society that allows ownership (of things, or land), because it's a very short conceptual jump from one to the other.