You know its amazing how TRAs keep arguing about all this medical science that proves brain scans show trans people are the gender they identify with and yet gender doctors never use MRI scans to prove their patients are trans.
It's because it's all bollocks, lol.
They want me to believe that you can have a brain that is either male or female - i.e. binary - and a "gendered soul" that is either male or female also, so the two can be mismatched, hence MTF, or FTM troons/pooners, but they also want me to believe that gender is on some sliding scale, or that a person can have no gender at all, or that a person's gender identity can change literally every day, or that a person can be "both genders" at once, even though they tell me there's way more than two.
At the same time, they want me to believe that there's no differences between men and women when it comes to things like strength, speed, personality traits etc., even though they do believe that there are binary male and female brains.
And the icing on the cake is that this supposedly progressive movement is built around rigid binary gender stereotypes, hence MTFs acting like some stereotype of some super-ditzy girly-girl with their spinny skirt, head tilt, and "OMG, I'm so dumb and emotional cos I'm a real girl!", which if that was done in any other context would be really offensive, but here it will get you magazine front covers and sponsorship deals.