The transgender person (born male) in the video does not look much like a man to me
That's 'cause you're an idiot. HE is clearly more muscular than nearly any woman you'll see and will carry that advantage built up through years as a male into the fight.
All human adults, when they were still babies in the womb were for a period of time anatomically of ambiguous/neutral gender (with mostly female looking external genitalia)
Unless you stay like that, what has this got to do with the price of milk? All you're doing is "blah blah blah, bullshit bullshit bullshit, me so progressive"
These people should compete in their own competition, that everyone can avoid watching, like women's soccer but less popular.
Some of what I mentioned above is evidence that sex/gender in humans is actually part of a continuum (even for those whose genetics are completely male or completely female), rather than being purely binary.
Bullshit. The overwhelming majority of people are one of two genders. The number who are not is very low. Just because you bought into the gender clap-trap doesn't make it real, it just make you delusional.
Just because some people have two heads or three arms doesn't alter the fact that "everyone" has one head and two arms. Every example you give is an anomaly.
I intend to say more later.
Don't bother. You don't get to broadcast your BS propaganda. It's sick and it's dangerous. People like you will literally be responsible for people living miserable lives and killing themselves.