you still consider it a thing that Simply Can Not Be Questioned By Decent Folk

If I considered you decent, you might have a point. And I recognize that calling trans people by their preferred name is a thing that can be questioned — but if you can question the subject, I can question you about your position. Don’t like it? Door’s to your left.

you react to said questioning according to classical, well understood patterns of aversion to desecration and blasphemy

I react to that questioning by wondering how calling trans people by their given name is apparently a burden greater than any other; if you can provide solid reasoning for that belief of yours (that isn’t just pseudo-intellectual claptrap about morals that you dug up from a TED talk to make yourself sound smarter), I’ll be more than happy to listen to and consider your position.

Let’s say that the name I wanted people to use when talking to me was Napoleon, because I believed myself to be him. (Yes, that Napoleon.) Would you say that basic respect and courtesy demands that you feed my delusion?

Your delusion is not even remotely similar to gender dysphoria. I would have no issue with referring to you by your given name — or with reporting you to the proper authorities for a psychiatric evaluation. And by the by, I despise the notion that people with gender dysphoria are someone psychologically “damaged” or “mentally ill”, so how about you stay away from using that little bit of bullshit again.

Certainly not; your argument would almost certainly be the exact opposite

Except it wasn’t.

it would be motivated by the same moral axis that you’re applying here, namely Care/Prevention of Harm

And what the hell is so bad about not wanting to harm other people? You demonize the idea so much that it comes off as you not caring about doing harm to others regardless of the other moral axes.

because this issue has become so heavily politicized by the extreme Left, people who have internalized those values are unable to apply that principle consistently without exposing themselves to painful cognitive dissonance, so instead they hack their brains into applying a lesser standard of Care that still lets them feel like they’re being moral, but with less effort

Trans people face higher rates of suicide if their gender identity isn’t consistently affirmed. Rather than give them the dignity of referring to them with their preferred name/pronouns and treating them like you would treat any cis person who presents as that trans person’s gender, you would continually misgender and deadname them — and you would then say “oh but I care about that poor thing” and act as if your intentional disrespect and mistreatment of that person is “love” and “caring”.

You know who else passed off abusive behaviour as “love” and “caring”? Anti-gay religious folks who were (and still are) all about telling gay people they will burn in Hell and will never be more than unclean sinner filth in the eyes of God…and justifying that emotionally abusive bullshit as an act of “love”.

If you would treat a trans person no better than an anti-gay religious person would treat a gay person, you may want to reconsider your values. I mean, unless you want to drive a trans person to suicide, in which case what the fuck.

Do you have any idea how ridiculously arrogant it sounds to hear somebody say "because I don’t believe something is sacred, no one else is allowed to hold that opinion either"?

The funny thing is, holding something sacred is what results in the “no one else is allowed to hold an opinion” mindset. I do not treat the discussion of “transgender people and deadnaming” as sacred precisely because I know other people will have different opinions than mine and that is fine. My whole schtick has been about getting you to answer a simple, single question: “When someone is transgender, how does calling them by a name they were not born with somehow become a hassle?” If I thought my opinion was the definitive word on the matter and no one else could dare differ from my position, I wouldn’t even bother asking the question — I would tell you how to think about it and say “fuck you” if you disagreed.

the entire point of dignity is that it’s not something someone else can give you or take away from you

And yet you would want to impugn the dignity of trans people — to treat them with less respect than you would any cis person who asks you to call them by a preferred name — only because they are trans. You want to make trans people feel as if they have no dignity, no place in your part of society, no sense of worth as a person trying their best to get along in a world that actively wants them gone.

You wanna do that? I cannot stop you. But you can be damn sure I would do my best to make you feel like a piece of cold dog shit for doing it.