I'm sorry, but trying to dictate someone's identity to them is always wrong.

[Kurska]

22. Your study is behind a paywall

Regardless, you're saying that our biology rules us and that decides what genders we should be allowed to claim. Again, I find that incredibly offensive and an insult to the idea of personal anatomy. Would you only use the correct pronouns for a trans woman if you had a brain scan showing they have a "female" brain? What if they had one showing a "male" brain, would you then try and correct them and say they are actually a man?

As someone who has actually worked with neuroimaging in a professional capacity, I understand the massive limitations of it and the huge individual differences between people. To propose we use it to question the deeply felt feelings of others about their identity is ridiculous to me and speaks more to your lack of knowledge on the subject matter than anything.