I think there is clear philosophical division between 'humanist' medical position, which tries to fix what is broken, but considers healthy human body and mind as ideal, and 'transhumanist' medical position, which considers improvements important regardless whether they just fix what is broken, or improve beyond natural abilities.
See that's the thing! You're looking for the furry (and especially trans) / queer communities, especially the Freedom of Form Foundation or the "digital self-identity" simulacra folks. All of these communities are grounded in imagining existing the ideal versions of ourselves, and making that work actually happen
