I say kat, steady on mate. I can understand your anger, but that kinda invective does our cause no favors. We should want to preserve at least a theoretical possibility that some of them might see the light, and abandon the error of their ways, no?
I can think of few insults more calculated to lose their interest than to brand them all as murderers. Deluded, maybe; indoctrinated, most certainly; but murderers? OK, I can think of one or two cases where that might be an accurate description. Like the oncologist convicted of prescribing chemo to healthy patients so he could get his 30 pieces of silver, or the cancer researcher who faked his results for so-called 'targeted' chemo.
But I'm pretty sure the majority do their best for their patients within the paradigms that they operate. You can't entirely blame them personally when the system forces them down that route. That's all they have ever been taught, so they simply don't know any better. Sad, I know, but true.
If you want a target for your anger, aim it at the corrupt system that turns these well-meaning oncologists into merchants of death. Don't take it out on the individual. Ad hominem arguments rarely succeed.