Daybreaker does not exist. Or at the least, Daybreaker shouldn't exist. She's just a nightmare, a concern, a personal fear. She isn't actually real.
Only until she is, at which point she becomes something of an issue for everyone.
Fortunately (for everyone who isn't Daybreaker) she just-so happens to wind up in the one spot on the planet where the only person she can bother is the only person who doesn't mind all that much. Even the death threats get treated as jokes.
It's intolerable.