I honestly wrote it wrongThere are other reasons pronouns and gender matter besides sexism. As a trans person, I'd rather not get rid of pronouns and gender, and I am not alone on that front, both for trans people and cis people. I'd be careful about how broad one's generalizations are.
I don't have a ton insightful to say on the original post. Knowing one's gender–if one has one–a totally fair question that lots of people grapple with. Some people, cis and trans, just 'know' it innately. Their conceptualization of gender may be incompletely formed, but it's strong enough, and applicable enough to them, that they innately know which gender (if any) applies to them. I was in this boat – once I became materially aware of trans people, I very quickly realized that "girl" was what I wanted to be.
I wouldn't presume to know your identity better than you, but you lacking an innate conceptualization of these terms reads as agender to me - gender does not seem to mean a lot to you, at least at this stage, and it of course is not something you have to identify with. Just as true, if you build an understanding of gender and identify more strongly with one (or multiple), that's rad too.
Sorry