So you don't like being called cis?
There are some folk out there that object vehemently to being referred to as cis, saying it's derogatory, even going so far as to claim that cis is a slur.
In case you haven't been informed already, cis is neither derogatory nor a slur.
Cis is merely a prefix, it means "on the same side as".
In the context of gender, cisgender Only means that your gender is the same as your assigned gender based on the presumed appearance of your primary sexual characteristics at birth.
In the context of social groups, cisgender is comparable to terms such as able bodied (not physically disabled), allistic (not autistic), perisex (not intersex), and neurotypical (not neurodivergent), to name a few.
And here's the thing, if you personally dislike being referred to as able bodied that doesn't change whether or not you are able bodied.
If you're uncomfortable with being referred to as allistic that doesn't change whether or not you're allistic.
If you don't like being called right-handed that doesn't change whether or not you're right-handed.
I know that sometimes finding out that there's a word for something that you've simply taken for granted to be something so universal that it doesn't need one can be a little confusing, but that doesn't change whether or not that word applies to you.
It means what it means.
It either applies or it doesn't.
Most of the time it's used in the specific context of discussing the difference in lived experiences between the two groups.
As in, when we talk about the difference between the lived experiences, challenges, needs, etc, of cisgender and transgender men.
Or when we talk about how both cisgender and transgender men share certain lived experiences, challenges, needs, etc.
Sometimes people will remind individual cisgender people that their personal lived experiences, needs, challenges, etc, aren't universal.
That you aren't the protagonist of all existence, by reminding them that they only belong to one group of people, varied as it is.
And when you're used to thinking of your lived experiences, challenges, needs, etc, as "normal", that reminder can be jarring.
Because you're not more normal than everyone else.
Nothing about your life is "universal".
And if that upsets you, you might want to sit and think about that for a while.. because you clearly needed the reminder.