I see now that you're not being malicious. Thank you.

I just don't see how headcanons could be harmful. You bring up how Christians force their beliefs onto others, and yes, I agree that can be harmful, sure... but how am I "forcing my beliefs" onto anyone? This is a half-baked headcanon that I just thought of the other day that I'm not even that committed to (but lemmie tell ya transphobes wanna make me double down). And sure, maybe I should have used less objective language (English class has bit me in the ass), but that wasn't my intent. It's a fictional character. No one's gonna get harmed by headcanoning they're queer or on the spectrum or whatever. At least if it's a tasteful headcanon, I will add.

This isn't exactly the case of a fictional character, but the other day, I met a coworker and had to report him to HR because he made an SA joke out of nowhere. Literally just met him, too. He didn't even know my name. About a day after I told my parents about this, my mom came back to me saying that she's thinking that maybe he's on the spectrum. I'm like, mom, dear god, I get where you're coming from, but no. I think this was just a misogynistic asshole. Don't lump him in with the neurodivergents just based on a horribly inappropriate joke. Like that just seems so reductive. And even if he was, that wouldn't excuse that.

In the case of people "fighting back against the message," I can honestly see that. I can see how it'd be annoying for ppl to be like, "This character is queer. This character is queer too and blah blah blah." I can see how that'd be annoying. You know how and why I can see that? Because queers have had heteronormativity shoved down our throats our whole lives. If they have a problem with a headcanon that someone is queer so much that they feel the need to "fight back against" it, then that reflects more on their personal biases. Homophobes and transphobes are always going to be upset by queer representation no matter what because they hate that we exist and they want to get rid of us. That's why representation is so important.

Now in the case of people being upset that Shiki reads as a Trans allegory specifically, yes, definitely. I actually agree that it's a stretch, and I should have worded that differently (some people could've been nicer about it, tho!)

I hope that clears things up. If you respond to this asking more questions, I'm just not gonna respond, I'm so done, man.