I keep getting asks about queer Sam and I'm not sure exactly why, other than people maybe assume I have a strong opinion about it. The simple truth is that I just don't find what's said about it compelling so it doesn't interest me. I have no issue with other people exploring it and don't have any desire to ruin anyone's fun. It's just that I don't personally see it when I dig deeper than the surface level of "he felt different" and examine why and exactly what Sam actually wanted and why he felt that way. I will get into that here to an extent I guess because I was asked in another piece of mail what my opinions were, but I don't intend it as an "argument" to start a fight or to dismantle anyone else's perception—just an explanation of my personal lack of interest in this particular type of meta.
First, I don't think "Sam grew up feeling fundamentally different from his family" works for me as a queer meta when the reason Sam felt "fundamentally different" was that—according to his own early framing—he was the normal one trapped in a family of freaks who wanted him to be a freak like them.
Sam says in 1.08 that he felt different from Dean and John, but when we read on to see why, he says it's because he wanted to play soccer instead of being a child soldier.
SAM
Because I didn't wanna bowhunt or hustle pool - because I wanted to go to school and live my life, which, to our whacked-out family, made me the freak.
DEAN
Yeah, you were kind of like the blonde chick in The Munsters.
For people too young to get "the blonde chick in The Munsters", Dean is referring to Marilyn Munster, who was the one "normal" person in a family of monsters in a 1960s sitcom.
In childhood flashbacks in 4.13, Sam refuses to fight Dirk at first even though he could easily best him using the skills he learned from their father.
YOUNG DEAN
That's right, you don't. You could have torn him apart. So why didn't you?
YOUNG SAM
Because I don't want to be the freak for once, Dean. I want to be normal.
In both situations, Sam views his family and what they do as freakish and wants to distinguish himself as the one normal one trapped in a family of monsters who is at threat of becoming like them by pure association and family pressure.
YOUNG SAM
Yeah, my, aah -- my dad's a mechanic. So I have to be a mechanic, too.
MR. WYATT
Do you want to go in the family business, Sam?
YOUNG SAM
No one's ever asked me that before.
MR. WYATT
Well?
YOUNG SAM
More than anything, no.
In 5.16 Dark Side of the Moon, one of Sam's greatest childhood memories is getting to sit down for Thanksgiving dinner in a normal, upper middle class household instead of sitting around with "A bucket of extra-crispy and Dad passed out on the couch."
In 1.01, he says he wants to be nothing like his family. He says he is normal unlike them when Dean is telling him they're the same:
DEAN
You can pretend all you want, Sammy. But sooner or later you're going to have to face up to who you really are.
SAM
And who's that?
DEAN
You're one of us.
SAM
No. I'm not like you. This is not going to be my life.
Sam sees the upbringing that he has in common with Dean as something almost... humiliating—to the point that he plans to lie to Jess forever about how he was raised and about his family (1.01).
All of this to say... when the queer allegory I'm being sold is that a guy is queer because he wants to go to college, get married, have 2.5 kids, go no contact with his brother (because Dean isn't normal like him?), and lie about his family to his friends because the idea of them knowing he didn't grow up normal is embarrassing... I don't feel like I'm reading a queer allegory. I'd be more likely to think that if anything, I'm reading a comedy from the POV of "the token straight" who initially functions (in the Pilot) as the "normal" character to introduce the "normal" audience to an "abnormal" world in a relatable, palatable way.
That said, when we embrace the fact that the Winchesters are a family of freaks, there is an easy counterpoint here which is that Sam's attitude in the beginning of the series represents being closeted and desperately trying to assimilate with normal society and be perceived as just like everybody else... and his freak family is in the way. In this case, Sam knows deep down that he is like his family (i.e. queer) but desperately wishes he wasn't so that he could fit in. Given that I'm a big believer in Sam being a hunter through and through despite his occasional denials, I find this much more compelling than the argument that Sam feeling othered in his family because he sees himself (at least at first) as the one normal one makes him queer.
*One of you shaking me back and forth*
"But PK—WHAT ABOUT THE DEMON BLOOD?!?!"
Yeah yeah yeah. While it doesn't start out that way, eventually, Sam does reflect on his childhood and see himself as Megamind instead of Marilyn Munster. This is retroactive though (in my opinion. I do not actually believe Sam could "sense" his dormant powers) after finding out that Azazel dropped blood into his mouth when he was a baby. Instead of feeling like the normal one in a family of freaks, Sam starts to feel like the biggest freak in the family, and Dean's "I'm a freak too" suddenly feels like platitudes. Dean—whose calls Sam didn't pick up for years—starts to seem like the normal one—the good one—between them. Dean is the hero character, the righteous man, the sword of heaven... and Sam thinks in his worst moments that he is someone Hero!Dean should be duty bound to kill (2.11). These are all feelings that (again—in my opinion) develop later. I talk about Sam's feelings of otherness and why he actually had those feelings and how I think the demon blood erroneously comes into play as an explanation for his insecurities here.
I think it probably also makes sense to mention here that the idea that Sam was treated as a monster by his family is very very overstated by portions of fandom. I'm not saying Sam never had reason to feel different or othered or unloved or neglected—he absolutely did (as did Dean). I am saying that people like to write about things that never actually happened when they talk about how Sam was treated growing up. Sam felt different from his family because John let Dean start hunting when he was younger than Sam, then he felt different because he wanted to play soccer and go to school while John wanted him to hunt, and because he thought Dean enjoyed being a parentified child and being raised like a soldier and Sam didn't. Retroactively, Sam feels different when he finds out he has powers. These do not develop until he is an adult, and it is never indicated to us that John knew about any of this when Sam was growing up—much less treated him differently growing up because of it. Retroactively, Sam believes Dean sees him as a freak for having visions even though Dean repeatedly treats his visions as no big deal and psychics are an accepted and trusted group within the hunter community (see: Missouri, Pam, Fred). Retroactively, Sam feels different because he was fed blood as a baby. He did not know this until he was an adult, and neither did Dean, as far as we know, neither did John. Sam never believes that Dean would act on John's last whispered command (that again—does not transpire until Sam is an adult) to the point that he repeatedly tries to guilt Dean into promises to follow through and carry out John's will. Retroactively, Sam feels like a freak in season 4 because Sam chooses to drink a completely different demon's blood of his own free will and develop a completely new power set and Dean doesn't think it's a good thing.
TL;DR Sam did not grow up being treated as the monstrous other by his dad and brother. He grew up as an understandably rebellious kid whose dad was a neglectful asshole and a drill sergeant, and he hated being dragged from place to place with no say. He felt different because he stood in contrast to a brother who tried his best to keep the peace because experience taught Dean that refusing to obey would get people killed (1.18), John would send Dean away if Dean gave him lip (14.12), and Dean felt he had to be there to take care of Sam and John (1.06).
More or less, these are the reasons I don't find the queer Sam metas I have stumbled across particularly compelling (along with—imo—Jared's lack of romantic chemistry with other men). At the same time, people seeing Sam as queer or not queer doesn't bother me. I am not trying to "take away" that interpretation from anyone else (as if I even could). I'm just not interested.