'Cisgender' does NOT mean just someone who is not transgender. It means someone who a) believes in having an inner, abstract gender identity which b) just happens to match the sex of that person's own body.
If you don't have an abstract gender identity of that kind, then you are not 'cisgender.'
There is no word for this (most likely very large) group of people inside the gender identity ideology, but we we are all forced into the ideology when it states that we all must have this inner feminine or masculine or both or neither feeling which is not at all based on what sex we happen to have.
Taken in a wider context the material category of the female sex (which used to be called women and girls) is now erased and replaced with a gender identity category (cisgender) into which only the very privileged fall.
From being the more oppressed sex, globally, women are sneakily turned into the more privileged identity category.
As a consequence, fighting female genital mutilation, sex-selective abortions, sex trafficking, sexual violence (which overwhelmingly is aimed at female people), sex discrimination at work, in education, in religions etc: all those become much, much harder if not impossible.
So I am not cis because of all this.