Did this threat come from a doctor? What an astounding lack of empathy.
I would switch medical providers in a heartbeat if at all possible.
Also, in the moment, it's entirely possible that somebody who is otherwise completely rational who just had a life-altering experience is temporarily less than completely rational and you're only hearing that one side of the story.
Why does society refuse to allow people to have mental and physical autonomy in matters like this? Sure, they pay lip service to it, but when it comes down to the hard moments, we almost always end up erring on the wrong side.
Perhaps this is a US vs. other countries thing, but I live in Germany and was born in the UK, and I'm quite shocked that you are surprised by unempathetic (or downright evil) doctors