Might help also to describe what you think feminism is, since it’s one of those terms that is overloaded.
I once had a physical therapist tell me she wasn’t a feminist because she thought women couldn’t be as physically capable as men when serving as soldiers, and seemed to believe feminism requires treating women exactly like men.
I told her I was a feminist because I believe in equal rights for men and women, an idea she did not seem so opposed to.
The gender binary is becoming outdated, but gender expression is an important part of personal identity. Gender isn’t going away, the limiting cage of the pink/blue divide is.
I have my doubts over that. I think expression without label restrictions is more free and organic.
At the end a gender, any gender. Is a sum of behavioral characteristics. But there are too many characteristics that can be flip floped all over the place. And having those layers is oppressive towards people wanting to express outside that label expected set of characteristics. As much diverse layers as we want to create they will never be as infinite as the infinity of the behavioral human spectrum.
On a more political side I sometimes fear that gender expression are used to create dominance groups. “We are Z gender, and I’m the Z gender representative so I get power all over these people”. It’s easier to dominate groups when they are categorized and segregated. I know is the main big thing about identity politics, which is somehow hot in some places left agenda. But I’m very against it. Only identity that matter to me is human and everything else it not segregable to me.
Gender expression is something people should be able to choose for themselves, including in fluidity, flux, plurality, and however said gender does or does not conform to social expectation. I’m personally “cis,” I’m a man, but I also make it clear that people can use they/them to refer to me and that’s fine. I see myself as a “less masculine man.” That doesn’t mean feminine-presenting men need to use they/them, either. Pronouns are personal, and I feel most comfortable presenting myself this way. If my gender were taken from me, I would be less comfortable. It’s a form of self-expression.