In my opinion, Destiel fans have the highest denominator of annoying fans on this site, unfortunately for the few rational Destiel fans (which do exist, don’t get me wrong, I’ve met some).
The reason behind this is simple: posts like the above (There are posts that are more concise and have a higher amount of notes than that, but that was the one I found the quickest.)
Destiel. Will. Not. Become. Canon.
Other shippers of slash in other fandoms typically understand that their ships are (more often than not, though there are exceptions) non-canon, and although they are fun to ship, they’ll never be anything more.
In a few cases, it may even actually make some sense for a slash pairing to become canon, though again.
But Destiel is most definitely not one of those cases.
You Destiel fans yourselves have inadvertently admitted why Destiel could never happen. I’ve seen that post going around about how ‘when Destiel goes canon, the flashback sequence at the start of the episode will be all the Destiel scenes that all the non-shippers didn’t see as Destiel, and they’ll all be so confused!’.
Well, you know what? Those non-shippers make up the majority of the watchers of Supernatural. The fandom side of Supernatural is a vocal minority. The CW caters to the majority, not the minority. And that’s putting aside the danger of putting a homosexual couple in a decently popular American show (Yes, I know that gay couples have appeared before in Supernatural, but it’s never been that blatant, and someone that wasn’t religiously homophobic may have been able to ignore it.)
That sums up the main Doylist reasons why Destiel is never gonna be canon, but there’s plenty of Watsonian reasons as well.
I’ve read Supernatural’s Ho Yay page on TV Tropes (basically a page for ‘homosexual subtext’ in media) and it’s cringe-worthy. All of those so called ‘slashing moments’ and ‘proof that Destiel is canon!’ is friendship at best and not even that at worst.
Destiel has not been set up in the slightest, and that’s a problem. It would make no sense in-universe for Dean and Castiel to suddenly get together.
Putting that aside, Dean himself has been set up as a hetereosexual character. It’s not something that can be argued. Yes, those little theories about how Dean suppressed his sexuality because of John are nice, but from the point of view of an average viewer, it makes no sense for Dean to suddenly turn out to be bisexual.
I am willing to defend my opinion and see what your arguments are here at snarking-spiderwebs.tumblr.com.