The whole 'eunuch' thing is a bit of a headache for trans apologists.
On one level they should theoretically embrace it whole heartedly. If gender's just a performance as per Butler, why not dispense 'perform' as something neither male nor female? Indeed some clinics in the US offer 'nullification' or 'nullo' surgery which amounts to the same thing (all outward genitals are removed completely, leaving patients with the Ken/Barbie look other than a small urethral opening).
I suppose a trans apologist could argue that 'nullo' surgery is a proper surgical procedure(itself a stretch but let's go with it for now) whereas DIY 'eunuch making' is not. However this is the same activist group which calls for parents to buy PBs and cross-sex hormones for their 'trans' teens on the dark web if they can't access a prescription.
In this area as in so many others, the TRA movement cannot get its story straight and it's artful, years-long disguising of a self mutilation cult as a proper medical field, once again is showing cracks.