Less than 1% of the world's population are trans; so yes, being non trans is actually the norm. There's nothing wrong with being trans, but it's dumb to insist that "all characters are trans." Sorry, but if you didn't write the story, you can't change what it's about,
Turns out you didn’t write it either! Also turns out that the vast, vast majority of characters are never confirmed to be cis or trans.
You and every other ciscentrist shitlord think that trans people cannot exist unless we run around shouting the fact that we’re trans to every person animal and inanimate object we come across.
As it happens, a lot of us NEVER TALK ABOUT IT. It’s not what we all consider a defining character trait. We exist. We’re everywhere. And 95% of the time YOU’LL NEVER BE ABLE TO POINT US OUT FROM THE REST OF HUMANITY. Because unless we are specifically talking about BEING TRANS, you can’t tell the difference! We’re not labeled! And I know this is going to come as a massive shock to your tiny bigoted brain, but WE ARE ACTUALLY PEOPLE TOO.
TL;DR: Your claim has been noted. Please supply ample CREATOR provided, sourced evidence of cishood regarding the character in question to the Cis Spectulation Board or we will be forced to assume this character, like most others in question, is still default transgender.