Anon why are you here asking us when you could just ask cis people what makes them men or women without pointing to genitalia? You're going to get the same answers.
>I feel like X
>my soul is X
>I want to be X
>I simply became X
>everyone told me I was X/my mommy said so
>insert science gamete chromosome answer here that relies on some internal things you can't see (we're back to soul)
>Uhhh idk I just am