>>96251863>>96251923Nah, I'll tell you.
I'm a "Tumblr native" and I used to be a lot like the kids you're posting about. And they really are kids, no older than 17.
I think the driving forces are:
1.) They believe media representation is very important. It's important to an extent, but things like housing homeless LGBT people, making healthcare more accessible for HIV+ people, banning conversion therapy, and the like are far more important. But they are young and they either haven't realized this yet because they fixate so heavily on media, or they've chosen this path because it's the only thing they can really do at the moment. They are very happy to take any misstep from the cisgender, binary, gender-conforming, heterosexual norm as canonical evidence for their more idealized version of SP.
2.) They believe they are building a welcoming, community for LGBT people by doing this. But they really probably aren't.
3.) Many of them believe themselves to be trans (some perhaps are, but I think the vast majority if not all of the kids who claim to be genderfluid and the like are just going through a phase; they're teens and the possibility of trasngenderism is a lot more visible and well-understood these days during a time when they are trying to figure themselves out, and they probably get a bit confused). They want to see people like themselves and their friends in the fiction they consume.
4.) There is pressure to be "the most woke" in these circles. Aversion to believing Stan Marsh is agender or something is taken to mean transphobia, which might sometimes be the reason, but probably isn't 90% of the time. Somehow genders and orientations are decided upon and you're just supposed to go with it or else your social circle will think you're a bigot and not want to hang out with you.
That's my ex-insider interpretation. Ask me my former head canons if you dare.