Got it. I guess I would just push back on calling UTXOs IP. They can be stolen by force though and they can't be copied but yet they are not physical. This is why digital property is something that makes sense to me. I'm open to calling it that. In other words I control some UTXOs so in that sense I own them. I wouldn't call it IP because IP is a logically inconsistent idea.
Discussion
It's all IP! These things are all intellectual works... The bitcoin code, The Constitution, Peanuts comics. The ability to control them individually, collectively, or some mixture of the two does not stop them being intellectual property.