Disclaimer: Not looking for an argument. Just sharing my own perspective. Also, I am not claiming all transgender believes in this or that.
I consider myself as a cis-genderless person and yes, I made that term up. The meaning is the perspective in which one has no gender mentality although does identity with his own sex as if one identifies with it by default. Now, I am not against any others' identities, but I have to say that no matter how much I read gender, I don't think I'll get the concept of gender, but to each to their own. I understand that gender has different meanings as well, so there's that too. As a ignostic, I also identify as a igender. Just transpose the concept of ignosticism to gender and you'd see what igender means.
There is something that's bothering me a while and it is projection that bothers me. From some individual in the transgender community, they do project their feelings of gender to cis-people as if they're speaking for them. To expand on it, some of the individuals asserts we have the feelings of being male/female and it matches our own biology. This completely ignores the existence of cis people who simply identify with their own biological parts because it is simply observable to them and others while yet does not have a internal representation of what they should be and not relying on feelings to make their conclusions.
As someone who falls under that cis-group, personally I am one of those people who simply does not get feelings of being male/female as it doesn't even register on my mind and it just is. The only thing that makes up me is my brain. If I lost my parts down there, then I simply will identify as neuter as it's basically what can be inferred from a certain perspective (I forgot the name for it). Empiricism? From my point of view (not applying to any of you), my mind's internal representation is irrelevant as what I think I am (Assuming I even do have one) is not nearly as important as what can be inferred from others.
One last thing, I used to identify as trans when I was 4 years old until my father told me that I am not. When I grow older, I see that there isn't really any major differences between males and females in terms of behavior and cognitive performance. Now, I'm not doubting that there's differences between feelings of males and females, but this differences is only applicable to some people as some people of a certain identity do not identify with male/female and some cis people do not fall under it as feelings of gender is not even a thing in their experience.