>>40616109
It's a medication with proven beneficial effects to a certain group in society. Those beneficial effects don't disappear in a post-gender/post-sex society.
Without the framework of sex/gender, it may be more difficult to grapple with diagnosing and identifying this group ("the desire to transition to the opposite sex/gender"), but it should still be doable using a framework of body modification ("do you want the changes that are associated with HRT?").
And, let's be honest, the the almost exclusive reason that boy/manmoders don't want the bodily changes that come with HRT is because of gendered aesthetic norms ("I don't want to go from a decent looking, socially acceptable, gendered body to an ugly looking, socially unacceptable, intersexed body"). If society didn't care you had an intersexed body, would you honestly not want the boobs and subcutaneous fat?