These words aren’t made up on the spot, they are one noun (gender) with a Latin qualifier prefix added that denotes something about the noun (cis).
You can’t “object” to being categorized based on your attributes; Cisgender is the same kind of word as heterosexual, which is just the word sexual with the prefix “hetero-” meaning different.
If you are a straight man, you can’t simply object to being called heterosexual as it is a term that describes you. The alternative is being something besides straight/hetero.
You can’t “object” to being categorized based on your attribute
While I’m with you for the most part, this is not really the case. To take an extreme example, “n****r” is literally just a categorisation based on skin tone, but I’m definitely not about to tell someone they can’t object to being called that because they really do have dark skin. Similarly, it might be accurate to call someone fat or lopsided or gangly, but in most contexts it’s pretty mean to do so and I don’t think they’d be out of place to ask you not to
Ordinary words can become slurs, mild or otherwise. “Cis” could. See the way that misogynists use “female”, a word which is still totally normal and fine to use in many contexts. I think the crucial difference is just that people don’t use “cis” that way.
I see what you’re trying to say, but this is a fundamentally different situation like you said: This particular word is specifically used in situations where its use is important for distinguishing groups. There are no alternatives when distinguishing is necessary because the options aren’t just “transgender” and “not transgender”, there are also agender and nonbinary.
The alternative is to say the full qualifier of “People who are the gender they were assigned at birth” or “People who are neither trans nor agender nor non binary…” - At which point you’re just defining the word cisgender.
With JP it’s honestly more akin to saying “Ok so there are people who live in California, people with homes in multiple states, and people who don’t live in California. Californians, kinda-californians, and non-Californians.”
And then someone who does not live in California pipes up with “don’t call me a non-Californian because California isn’t real”.
If somebody lives in Zimbabwe, and they don’t like being referred to in terms of California or not California. While you’re vocabulary is consistent, when you’re speaking to this person from Zimbabwe it would be polite to not label them as a non-californian to their face.
This non-western, non-white, non-Christian, non-Californian theoretical person might get annoyed by being defined by all the things they are not. Even though every term is technically correct.
To be clear in case I wasn’t before, I agree with you that “cis” is not a bad thing to call someone. I was disagreeing with the logic you supported the point with rather than the actual point itself. Peterson is 100% doing it because he’s a dickhead that wants to weaponise the language against trans people
Why is it my business what is in their pants, and how they gender themselves?
In this particular case, it’s because JP is very much vocal about both of those things. He is a cisgender male who is only objecting to the suggestion of the existence of an alternative to being the gender you were assigned at birth.
It’s clear from this conversation, and tweet above, the only reason to label this person as cis is to trigger them.
That is no way to treat another human being.