Ways to prevent someone from extracting value out of their work that are clearly not theft:

- murder

- kidnapping

- ddosing their site so they can't sell things

- carpet bombing their reviews with 1 star

- filing an injunction blocking the sale of their product on bogus ip claims (aka copyright trolling)

- gaslighting them to the point where they think the idea is worthless

- being the owner of IP that prevents them from selling their IP

Probably others but I think that's enough to show your definition is wrong.