#tw 3x01

Point One: The headcanon is entirely unsupported. Consider the image at the top of this post. That look on Stiles's face is, as far as I can tell, the sole trigger behind the creation of this suspect headcanon. Stiles makes eye contact with Derek and, apparently, looks guilty to the fandom. From this, Stiles is supposed to be sharing a private moment of remorse with Derek, to which Scott is not privy, about their inability to find Boyd and Erica over the summer.

Even given the possibility that the look on Stiles's face could also be interpreted as genuine concern for the fates of Boyd and Erica, regret that something new is coming for Beacon Hills, or even frustration that Scott is getting involved once more in something dangerous, the headcanon's interpretation does not in any way mesh with the actual lines spoken in the scene.

Derek: A pack of 'em. An Alpha pack. Stiles: All of them? How does that even work? Derek: I hear there's some kind of a leader. He's called Deucalion. We know they have Boyd and Erica. Peter, Isaac, and I have been looking for him for the last four months. Scott: Let's say you find them. How do you deal with an Alpha pack? Derek: With all the help I can get.

If Stiles has been working with Derek all summer to find and rescue Boyd and Erica, this dialogue makes no sense. Wouldn't Stiles already know about the alpha pack and how it works? Why would Derek not list Stiles among the people searching? It would require Stiles and Derek (and later Peter and Isaac) to deliberately decide to exclude Scott. Those who adhere to the headcanon never actually explain why Stiles and Derek would want to conceal Stiles's participation in the search from Scott, but that's not their point.

Yet, while a conspiracy might explain why they don't reveal the secret here, it doesn't even begin to address while it is never mentioned elsewhere during the season (or any season). It also renders the dialogue between Derek and Stiles and between Peter and Stiles in Chaos Rising (3x02) incongruous. It makes the relationships between Stiles and Isaac and Stiles and Boyd incoherent. It makes the way Stiles treats Derek throughout the rest of the season nonsensical. But that's not all.

Point Two: It shreds characterizations for everyone but Scott. Take Stiles. In the last appearance of Stiles in Season 2, he tells Scott that "you still have me," in an incontrovertible statement of support. Why would a Stiles who made that promise hide this information from Scott; not just in this scene but in every scene about the Alpha Pack to come. If he was trying to keep Scott out of the supernatural things, then he didn't do a very good job; after all, he's the one who tells Scott about the Darach once Stiles discovers it. If he's secretly angry at Scott for something (whether it be not finding him when Gerard kidnapped him or some other fandom-conjured reason such as Scott 'ignoring' him all summer), then why wouldn't he use it when he argues with Scott in Unleashed (3x04), Frayed (3x05), Motel California (3x06) or Currents (3x07)? For this headcanon to be even remotely valid, it has to suppose that Derek and Stiles established a positive working relationship, but Derek is the one person to whom Stiles doesn't bring his ideas about the Darach. Why the sudden and unexplained change in regard?

Take Derek. If Derek trusted Stiles enough to have him help his pack look for Boyd and Erica over the summer, why would Derek so casually and cruelly dismiss Stiles's assistance after the recovery of Isaac ("Not You!"). If Derek is simply trying to keep Scott out of this -- which is actually seen on the screen -- isn't it callous of him to not have tried to keep Stiles out of it? And if Derek is angry enough with Scott not to seek his help over the summer (though this emotions doesn't stop him from accepting and asking for Scott's help visually on the screen), why doesn't Derek ever bring up that he trust Stiles enough to help but not Scott?

Keeping this a secret throughout the entire season doesn't match anyone else's character, either. Why didn't Peter use it to needle Stiles in Chaos Rising or needle Scott in Unleashed? Why does Peter, who is consistently portrayed as manipulative and using other people's misdeeds to excuse his actions ("I'm not the only dysfunctional family member.") not use it to undermine Derek's or Isaac's trust in Scott? For that matter, why doesn't Isaac use it in any of the conflicts he has with Stiles? It simply doesn't fit in with anyone else's behavior or characterizations.

Part Three: It does, however, serve to undermine Scott's role as lead protagonist. This is, at the base, the point. It's not really a starting point for Sterek that they claim it to be; a massive conspiracy doesn't really establish the impetus for their relationship considering how they both canonically treat Scott later. It does, however, serve as a coded way to establish the white male characters in the show as a social group in and of themselves, one from which Scott must be excluded, perhaps because of his inadequacies (he has to go summer school, see, which in Beacon Hill seems to be envisioned as a boot camp-slash-gulag) or his sins (not sacrificing Allison) but there has to be a reason. When you take in the way it doesn't fit into anything happen and doesn't really help what they want to happen, the only logical reason for the creation of this headcanon is that it demonstrates their belief that Scott does not deserve his position as lead protagonist, and that Stiles's professed loyalty is slowly being transferred to a man he had on a list of people responsible for human sacrifices twice.

But it is inevitable that such headcanons go against the themes of the show, the plot of the show, and the established characterizations of the cast, because consistency is not really important to parts of the fandom. What is important is that it suggests the true focus of the story should be where the believe it belongs: any white male character. This ill-fitting whim has become almost universally accepted, to remove a character of color form his position as lead protagonist with a subtext so deep it appears for exactly 2 seconds.