Not taking a position one way or the other, but I think it’s really more accurate to describe that she is phobic to the redefinition of historically established words with definitions that describe people who have certain sexual organs.
If you define "real" as in: only a real man and a real woman can reproduce, then I guess there is your limit. That's not transphobic, that's reality.
Maybe not a problem for you, but it is a problem if you were born female. In that case the "the people who were born female" seem to need an action group. But they can't because that would be transphobic.
[1]: https://olympics.nbcsports.com/2021/07/02/namibia-400-christ... [2]: https://www.vice.com/en/article/pkgaj8/utah-parents-gender-c...