First: she doesn’t need to say anything specifically or explicitly to be a transphobe actively hostile to the existence of trans people.
Second: she says things and creates spaces that are very specifically and explicitly hostile to the existence of trans people.
Third: she associates with and collaborates with people who openly advocate for “reductions in trans people”.
Honestly I could go through my understanding of her issue, but many people have spoken at great length about why her behavior is harmful. If you’re truly interested seek them out.