I hope I'm not derailing here (please tell me if I am and I'll delete this), but I'd like to especially call attention to this line (which I love, btw):
I don't care how much you relate- he wasn't trans, don't call him a woman.
At some point relatively recently, people seem to have come to the conclusion that you can't empathize with a character (or real fucking person, in this case, and I cannot stress how gross that is) unless you're just like them. "Oh, I, a nonbinary person can identify with this cishet man? He must actually be nonbinary!" "Oh, I, an autistic person, can identify with this Ambiguously Quirky™ person? She must actually be autistic!"
Being able to relate to a person--real or fictional--who isn't just like you is a good thing. It's good that you see yourself in the writings of a cisgender man! Maybe it will teach you that cis people aren't the enemy. It's good that an autistic character resonates with NT people! Maybe they'll gain new insight into their autistic friends and family!
It's called empathy, and it's so important to understand that you are going to see your experiences reflected in people who are unlike you. Those connections are important. Deciding that Kafka must be a trans woman because you're a trans woman is missing the entire fucking point. It means that you do, in fact, have some things in common with a cisgender man, and conversely, it means that cisgender men have things in common with you. To flatten them out so they're just like you is missing out on so much of what they have to say.
People are beautiful and rich and layered and the fact that we can connect with other people and share experiences despite how different we are? That's the whole fucking point. That's what makes life worth living.
OP, I'm sorry I only spoke on being transgender and autistic. Those are the only two points that I could speak on from experience. Talking about real people like they're fictional pisses me off, and I sort of... got off on a thing.