No, thats much much lower. As in torture a novel for decades in order to give a tulpa a quick amusement being a moral thing to do lower.
Assuming you mean either a physical book, or the simulation of the average minor character in the author's mind, here. Main characters or RPing PCs can vary in complexity of simulation from author to author a lot and it's a theory that some become effectively tulpas.
Your answer clarifies what I was trying to get at with my question but wasn't quite sure how to ask, thanks; my question was deeply muddled.
For my own part, treating a tulpa as having the moral status of an independent individual distinct from its creator seems unjustified. I would be reluctant to destroy one because it is the unique and likely-unreconstructable creative output of a human being, much like I would be reluctant to destroy a novel someone had written (as in, erase all copies of such that the novel itself no longer exists), but that's about as...
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.