There is some implicit notion that when a woman becomes more masculinity it is good, and trans men somehow embody the ultimate apotheosis of a woman (i.e. a woman who achieves manhood), it all just reeks of misogyny and transphobia to me. This thinking seems to hate femininity and it negates the male gender identity of trans men.
It’s certainly not a notion I hold.
My own stance on this is strictly from the “harm done” angle. Transitioning is already incredibly tough to do. You’re probably losing friends. You’re probably losing family. Everybody around you is looking at you with different eyes, many of which are hostile.
To suddenly lose an entire community that was supportive (presumably) as well? That would be nasty!
Don’t take “no” for an answer!