Non binary is not a gender. We only have 2 genders. Non binary is a state of mind. Subjective with no biological basis.
Gender should never be considered disconnected from sex. Considering we have 2 sexes/genders for procreation there must be a biological basis for it and there is none for being non binary.
It’s just a word. And non binary lesbians come on. If you are not a girl why would you refer to your self as a lesbian. Only lesbians are girls. So you can’t be a non binary lesbians those to terms cancel each other out. Our language is being butchered. It’s an abomination. People are free to identify as what they like but in my experience if you have to identify with a thing. You are not that thing.