If evolution is so complicated that medical doctors are not educated sufficiently to understand it, then it has no business whatsoever being taught to high schooler and undergrads.
That's sort of equivalent to saying, "there's a lot about anatomy that rocket scientists are not educated sufficiently to understand, therefore it has no business whatsoever being taught in high school or college."
Don't biology students, or potential future biology students, get to study biology in high school or college? Do they really have to wait until graduate school to learn the foundation of biology? And just because medical doctors don't know it? That's absurd.
I have medical doctors as colleagues. I have taught medical students.
There is a heck of a lot that medical doctors do NOT know about really basic biology - not just about evolution - but also in fields more immediately related to medicine, such as cellular biology and genetics. I've had classes of medical students who had trouble grasping
extremely basic genetics, and classes of bio undergrads who knew the same genetic concepts in their sleep before I brought them up.
MDs need to understand little of the biological facts and concepts that many biology researchers could not live without - even though it is often said biology researchers who are providing research and therapy design to the doctors who will use it without fully understanding the underlying mechanisms.
This is not necessarily an insult to MDs, because they have other things to cram into their brain, like the massive number of treatment options for each condition they might encounter, and the criteria for selection amongst those options for a given patient.
Does an auto mechanic need to have a complete understanding of physics and thermodynamics to keep your car running?