Jen
I think I know what you are saying and agree that binary society (cis and Trans) struggles with understanding NB. While it is right for this to be questioned and explored by the individual and by their therapist, this is just as true for the binary identified trans.
Therapy and the journey for self discovery and acceptance is the search for authenticity, for the tools and confidence to live your truth. If the discomfort experienced by others appears to be of concern there are a number of mechanisms and skills that can be applied or developed.
In society it has never been a good idea to force integration with the majority, whether it has been with religious, political or indigenous groups. Harm results when diversity is forcibly attacked.
We have to be very careful that a patriarchal approach which seeks to achieve conformity is not just lateral violence in disguise. I am uncomfortable with the example of the dagger that you have used. The presence of NB does not pose a physical threat to any part of binary society. Education is needed for the majority, not misguided attempts at 'reeducation' or forced conformity with the binary model. Indeed such an approach isn't too dissimilar to that which CIS society originally tried to apply to the broader trans community, reeducate, deny and hide, because we made them uncomfortable, and in some cases were perceived as a threat to the staus quo of cis society.
Safe travels
Aisla