Women's pants are also bad about that. I was underweight from stress during my breakup and most women's tall sizes start at a "6" which is like a men's 32, more or less. I was not that big at that point. And to make matters worse, many of the allegedly tall pants just have a longer inseam and are not longer in the rise, as though all difference in height is just legs.
Gap makes tall men's and women's pants, they actually do make them tall not just longer inseam. I am not tall enough for their tall pants but get the best fit by buying tall and hemming them, because standard fit (to the extent it even exists in women's clothing) is wedgie city, not long enough. They also make tall shorts, which is amazing,they actually fit.
Who decides what is "real" though, if it's not the person in the body? So someone says they are a boy, but the MRI says nope, you are wrong, you are a girl through and through.
What if I am a cis woman and have a mind that works more like a guy's mind? But if I still am comfortable and happy in my woman's body, who cares how my mind works? Nobody, that's who. Why would trans people not get the same consideration?
I just don't think it makes sense to use tech to invalidate someone's experience, and it's just not anyone's business if someone wants a different body. My sister got big fake boobs, nobody said "well, you don't have a body that matches the boobs" they just gave her what she asked for and paid for. Why can't a man do that if he wants? Why does he have to prove he's a woman first?
None of that makes sense to me.