I don't think I wrote that.
Doctors already use tech assistance. I just pointed out that while we've got efficient robots for applied math, we don't have those as agents in the physical world. People who do blue collar jobs are less replaceable. Well, believe it or not, but most doctors are actually blue collar workers.
It could be but treating patients also requires continuous diagnostics, result comprehension, and final assessment so this is certainly the part where AI could play the crucial role.
I don't think anyone thinking of the AI consequences on medicine is arguing that it will replace manual labor such as procedure executions or psychological support. This is obviously not possible so when I see people talking about the "AI in medicine" I read that as mostly complementing the existing work with new technology.