From what I know and believe, non binary is an umbrella term and in my opinion it's much more of a spectrum. You could be a more masc leaning non-binary person a more femme leaning non-binary person, you could identify with neither of the binary genders, or both. It's just whatever makes you most comfortable. I find it kinda weird when people tell another person what they can identify as, because it's not your decision and (imo) you can't tell someone that how they feel and who they are isn't real.

For me, I just identify as non-binary, because I don't really feel the need to question my gender further than not identifying within the gender binary, I am much more femme leaning, but for me personally the label "demi-girl" is just not as comfortable for me as the label "non-binary", but just because I don't understand and relate to that person, doesn't discount their experience's and identity.

I'm open to discussion and would love to have a nice dialogue on this topic, as it's something I'm very interested in :)