Because so far I understood that for example the sex can be female, and so can the gender. But what sense does it make to have female gender? There is just a human in your head.

But then again… how important is this belief? And why are people claiming that there are more than two genders? Because of gender refers to sex, then what is going on there?

Their are neurological and therefore psychological differences between people of different genders.

But there are many nuances between people. It wouldn’t make sense to try to distinguish between those nuances.

These are normally aligned with their physical sex and hormones. When there is a misalignment between gender and sex that's what trans people are. It's not belief, it's brain structure.

This is a rather bold statement. To my knowledge scientists have yet to understand how the brain works. And I believe studies to identify peoples brain structure as gay, trans or straight would be very questionable. And dangerous I should say. Depending on the governments, this would be very dangerous. Imagine what the Russians or Chinese would do…

There is just a human in your head.

Do you not feel attached to your birth gender at all? Or any other gender? Like if you woke up in a body of the opposite sex would you be okay with that?

I don’t think that I would care much. I guess I would be annoyed by menstruation. I really cannot see any blood, I become unconscious and fall over like a bad soldier. But other than that, I do believe that I could be happy in any kind of healthy body.

Statements like this sometimes make me thing the person I am talking to is either very ignorant or a very confused agender person.

I am just confused. So much is going on in this world. And then suddenly people create new concepts that are still somewhat in the making, under constant change, concepts that I have nothing to do with, but I don’t want to get out of touch. And I do understand that something is driving people, and usually people have good intentions (even people that are on the other side of a discussion). But I find this gender stuff to be difficult to understand. Especially the need to identify with something. For me happiness comes from another place. Not from a (and don’t get me wrong, I don’t want to offend) self centred perspective. I don’t feel the need to identify who and what I am. I think one quickly falls into a mental trap there, because thinking and identity is something far too complex to articulate in language. I’d rather just enjoy time with people that are important to me and do stuff that we enjoy.