Gender identity starts with an individual's right to self identify as their gender of choice. Gender is a social construct, society is always changing and members of society have the freedom to build their own gender identity.
Stonewall define gender as "A person’s innate sense of being a man, woman, non-binary or another gender".
I think Raye is using her platform on national television to support our non-binary friends at a time when they are literally under attack for simply being who they are. More power to her.
https://en.m.wikipedia.org/wiki/List_of_gender_identities