No no
you're misreading the chemo analogy. It's not, "asking the doctor to leave it in," it's the doctor asking the patient, "what are you going to replace the cancer with?"
The point is that if you delay the procedure until the patient gives you a satisfying answer, the cancer will have killed them. The analogy suggests that we should just do the procedure now before the patient dies, even if we can't answer every single question. Delaying the procedure is the dangerous thing, not the lack of a replacement.
I mean he does kind of look like the gators are running a train on his tooshie