I prefer to see things in the context of male vs female and femininity vs masculinity, with androgyny being the go between between each. This applies to sex, identity, presentation,roles, and attraction, and it works on a bit of scales and you can put more than one pin in for where you place on each scale. Also, each is susceptible to change over time and on a whim.
This tempers how I view myself and others. I'll use myself as an example. In terms of sex, I'm male with bits of female (hormonally), like all post trans MtFs. But then my identity. It varies. It's predominantly wayy on the female end, thus I'm pursuing transition. Simply because I'm best suited toward being female all around. But then id be lying if there aren't days where my identity is androgynous or feminine maleish..hence, the other pins yay!
My presentation varies. Most of me in terms of appearance at my core, when you strip away everything else, is generally female with hints of androgyny, I suppose, I dunno. I'm naturally female for being MAAB, I suppose.. I'd say on most days I present wholly femininely, but somedays on the feminine/female side of androgynous. My role is essentially 100% female socially, at this point.
Then there's sexuality. Mine is complicated, like everybody, I think. I'm only attracted to people whose sex is male, I must say. So I couldn't even date an FtM tbh. The identity must be either male or androgynous/mixed. Not female. The presentation, I vary a lot! Different types of guys appeal to different sides of me. I like super masculine but also androgynous and feminine..but not so feminine it's female.
See it's all sort of a mix and match deal! so I think that's why terms like 'cis' and 'trans' and 'gay' and 'straight' are so problematic in how we perceive ourselves and others. You can take an MtF right? She can have a totally female identity but if her presentation is male, many will struggle to see a female. Personally, I respect identity, but I may secretly see a person differently depending on the presentation. Sex plays a lesser role in how I perceive others, but for some it might be 100% important, cuz it still matters so it can dictate how someone sees others depending on the context.
That's why I say I dot care what people think. Their perception of me is their business, just like mine of others is my business. As long as we all have mutual respect and rights, not just legally, but in terms of self expression. I say we allow each other to process ourselvex and others both internally and externally however feels best.