I've shared elsewhere how when I got into the trans community, I tried to express my sadness that I could never hope to become a father in the same biological way as I was already a mother, and I was told in no uncertain terms that I was a man and that was that. I have no doubt Freddy was similarly gaslighted and encouraged to entertain a delusion, and that being reminded of the biological truth must hurt.
At the same time, my heart aches for this poor child whose mother can't even respect their basic human rights.