Disclaimer: I thought of this while using this command line. I actually think Celeste and Matrix are good and trans rights are human rights.
Image description: [ First pannel; character turning his back on the Trans flag, Madeline from Celeste and the Matrix movie title screen : "I am not Trans". Second pannel; character hugging a box labeled 'gender': "I enjoy the gender I was assigned at birth." Third pannel; character typing on a laptop with the Arch Linux logo while wearing programming socks. A bubble shows the line on the screen : 'makepkg -cis'. The character says: "When I compile an AUR package, I clean install files, install the program, sync dependencies; in a single line." ]
One example I can think of is how cis people (usually cis males) who choose to crossdress are often misgendered, made fun of, and told they must not be cis because of how they dress.
Though I'm not really sure if this actually counts because these issues I described also affect trans people who are gender Non-Conforming, in very similar ways.
What's more likely is that their comment is just a funny joke, where they swapped the roles of cis and trans in the passage and the joke part is that it sounds absurd and isn't supposed to make sense.
That's true also. And what's weird is, I'm gay but I've known a couple guys who were cis and dressed up as females because, it felt empowering to them. And they were both straight in terms of their orientation, one had a girlfriend, the other guy was married.
So it's kind of strange to be a gay person who is friendly (which I am), people open up to me about all kinds of things and, it's just assumed I will be OK with anything (because I'm gay? I guess) so, I've seen all kinds of things.
For the most part I accept others no matter what, because we all need validation and we all need to feel that. But i do get push back when I post that I'm cis and happy to be cis, like that's somehow unacceptable or disrespectful to others. It isn't meant to be at all.