Lol then they should just say that. Like that "Cis" gendered bullshit. Lol you mean normal.
I think the problem that created cis- is the idea that if something isn't "normal," it's bad.
I'm bi. That is NOT normal. We are a small subset of the population. There's no value judgment there; it's just not what is normal. I am also a biological male who IDs as male. That's normal. My friend who is biologically male but IDs as female? She is not normal, and would be the first to admit it. There's nothing wrong with her, but she does not fit the norm .
But when people hear "abnormal," the connotation of "wrong" is there, and they feel they need to label everything else so that nothing is regarded as "normal." It's linguistic brinksmanship, IMO, but I understand where the need comes from.
Again, just my opinion, no guarantee of accuracy or truth is offered.