\What has you confused is ideology. I do not care a rodent's rectum about it. I am telling you that my brain is physically different, and I really preferred being called "she" and "her" when you talk about me in conversation, bitte-danke. Beyond that, I believe that most of the ideology about gender, either way, is stupid. I cannot be bothered to provide you with several years' worth of education about neuroanatomy, and getting my gender right, whenever you talk about me with others, is probably the easiest way that you will ever make friends with somebody.
Furthermore, I disagree with the deconstructionist approach. According to Nick Haslam, it is a counterproductive approach, and when fighting back against essentialism, we are better off focusing on entitative essentialism, which is the kind of stereotyping that denies diversity within a group or intersectionality with other groups. For instance, a transgender man can also be a misogynistic conservative Protestant that likes to watch football. Not all of them are like that, but they can be. Transgender women can be like that, too. Some trans-women are also rednecks that like to go deer-hunting in the autumn. A surprising number of them are fat and lazy computer programmers that have not actually looked believably feminine since middle-school. Only a few of them actually look like the glamorous models off of RuPaul, and a truly amazing number of them just look like normal, everyday people. The point is that we come in all possible flavors. You might even like some of us.
See Essentialist beliefs about social categories, by Nick Haslam.
I have given you the neurobiological explanation for why I am the way that I am. If you need sources, then I am happy to provide them for you, but you could always look them up on your own if you prefer. Also, I have given you simple instructions for how to make a good start on turning me into a friend if that were ever your inclination: just call me by the gender that I prefer to be called.
I am not complicated. Life is complicated, but I am not. When you get right down to it, I am the easiest person ever.