Out of sheer morbid curiosity, as an autist and a writer, things like this fascinate me. I like to know what not to do and how to avoid it where possible. That doesn't mean it's never happened to me, though, there's been a few times.
Now, I'm not talking about like gay characters in a show and you're not into that thing. I'm mean the media equivalent of receiving a great blowjob and then suddenly you get a finger in your ass that wasn't part of the original offer.
Mine is the show, The Magicians. I knew it would be lefty-leaning because that's just how the books were and the cast was diverse in hollywood's favorite way. That said, I was in for some trash and the fastforward button was for the parts I didn't like. 3 seasons in, I like the dumb plots and the sudden twists, then, the show decided to pull some stupid fucking meta and lecture the audience: Rasheed starts to lecture us that you're a racist, sexist, bigot if you don't watch/read something because the main character isn't white and male. After that, I completely skip a couple episodes, because fuck that bullshit. I calmed down and the first episode I watch, they killed the main fucking character, a white male. Series goes on, I do not. The whole fucking scene was the producers trying to guilt the audience into not rage-quitting the show by calling us bigots. After that, I decided I was never watching another syfyllis network show again, or one with a racially diverse cast, especially no Rasheeds.
The Transformers: More Than Meets the Eye, the comic book series from IDW. When it began it was a series about a group of (mostly) Autobots with wildly incompatible personalities, wandering the galaxy looking for some Ancient Knights of Cybertron. The Great War had just ended and people were starting to heal from several million years of battle fatigue. The characters had virtues and flaws, got along with some and not at all with others and... just had adventures.
Then the writer, James Roberts, swept all of that off the table and the series became all about "these two are gay for each other", "these three are in a love triangle/rivalry", "these two were in a platonic relationship, but this one is now a lesbian", and so on. And yes, they don't call it homosexuality, they call it Conjunx/Amica Endurae, but it's the same fucking thing and all the characters lost any depth and complexity they had on the altar of LGBT.
Motherfucker even turned Megatron gay for some bot called Terminus.
Never forget. Never forgive.
Gay fucking robots. What a time to be alive.