I have now had a chance to reread your link.
Would you please expand on just what you find compelling about this blog post?
Firstly, it describes that sex is not reliant on just chromosomes. This is accurate and it is correct. Established science has stated that it is not just chromosomes that define a person's sex category. The first and foremost distinction is whether a body has been formed around the production of either large or small gametes.
I am happy to link several different experts that make this statement. From developmental biologists to evolutionary biologists and doctors.
I believe the article I linked up would also state the same.
Too easy.
Next, this post talks about brains. However, there is no evidence at all that has any strength of conclusion about brain differences. And that there is no such thing as a male brain or a female brain. Of course, there are structural differences and there is also differences due to hormonal influences. I don't believe that I have come across any feminist that has said that there is a female brain though. Have you?
This part drawing on weak conclusions that are weakly articulated too.
'Thanks to the participation of trans people in research, we have expanded our understanding of how brain structure, sex and gender interact. For some properties like brain volume and connectivity, trans people possessed values in between those typical of cisgender males and females, both before and after transitioning. Another study found that for certain brain regions,trans individuals appeared similar to cis-individuals with the same gender identity. In that same study, researchers found specific areas of the brain where trans people seemed closer to those with the same assigned sex at birth.'
I am very happy to post the links to two of the studies referred to here. One didn't even bother to mention that same sex attracted male people also have some specific brain patterns and the study did not consider which of those male people were homosexual and which were not. And the 'appeared similar' is ignoring the fact that the results were well within the male range and there were other male people in that range too. So.... the results didn't resemble 'female brains' they just resembled other male brains.
As I said, happy to link up those studies.
Then this piece refers to hormones.
No male person naturally produces female levels of all hormones. So, what is the relevance here?
Also, it argues that being female is not just about hormones. Well..... no shit Sherlock. Being female goes back to having a body formed for the production of large gametes regardless of whether that person's body has ever, will ever or is producing those large gametes. Which is the established scientific definition of who is categorised as a female human.
Not only that, but seriously, what the fuck is 'typically linked to feminine-coded behavior' that is driven by estrogen? There is no reference for this, why should anyone believe it?
However, there is nothing in this link that supports 'While this is a small overview, the science is clear and conclusive: sex is not binary, transgender people are real'
What they have tried to do is to leverage people with chromosomal medical differences where it is already widely known and established that these may not be fully reliable to categorise someone's sex category.
They tried to make some weak findings for brains much more relevant and conclusive than they actually were. While making another false claim that people are saying that there is a male or female brain...
This blog post is not compelling at all and it doesn't really present an evidenced position at all.