Where do the notions that being called ‘she’ goes along with wearing certain clothes, or having certain hairstyles, or shaving your legs, or whatever, and that these ‘presentational’ things are what makes you a certain gender come from?
Gender norms amongst humans are socially determined and culturally specific - they are not ‘natural’ or inherent. I don’t understand how people can ‘know that they are in the ‘wrong’ body’. They are in their body - if there is a clash between the gender norms that society has decided are appropriate for someone of their sex and the way they would prefer to behave, isn’t the answer to defy the gender norms, rather than attempt to change their sex?
Gender norms change across cultures and over time? Look at the way that they have changed in our own lifetimes, and the difference between cultures in other societies and cultural groups within our own.
Gender norms are so socially based that they can be changed overnight, such as is happening in Afghanistan now, or happened in WW2, when women were encouraged to work outside the home, and after the war, when they were encouraged to be ‘housewives’ and give the jobs back to men.
Fashions change, too. Boys in dresses were once the norm, and women in trousers an aberration. There is nothing ‘natural’ about any of it, so how is there a deep-seated need to conform to one set or the other? Why not break up the way norms are assigned to ‘sets’ as in the above examples and pick and mix at will?
If people are revolted by their bodies in genuine dysmorphia, that is different, isn’t it? That is a question, not a statement, incidentally. It still has to be a learnt response to their body though, doesn’t it, as gender norms vary so much?