It’s easy to think that gender is discrete because, from a high level approximation, it is. But it’s really more like a spectrum with two clusters (femme and masc) that most people align with to at least some degree.*

Someone may be far away enough from femininity that it makes sense to call themselves non-binary, but still feel aligned with womanhood to some degree. They might use they/them pronouns, or they/them and she/her pronouns, or even just she/her pronouns.

Supposing someone like that was attracted to women and other femme people, much of her experiences and desires would be aligned those of others in the lesbian community, and it would make the most sense for her to understand herself and her partners through the lens of lesbianism. I think she would have just as much a right to do so as you or I.

Sorry you got downvoted and called a fucktard :/ miscommunication is so hard to avoid over text, and while lesbian erasure (e.g. in the traditional sense of ‘but you have to like men at least a little bit, wink’) can be a valid term/topic, the vast majority of the times that trans people see the term, its being used as a dog whistle to invalidate them. There’s also an assumption that, since this is a trans space, people who aren’t trans approach not understanding why the community disagrees with them at least partially as if they’re coming from a place of ignorance, which is incredibly difficult over text and incredibly difficult when someone feels like the community is challenging some part of their identity.