I'm aware it's fashionable among certain parts of the left to refer to any discussion at all of population genetics as "supporting eugenicists" but it's honestly not an effective way to make any sort of point.

How's that even remotely relevant? Your doctor is not your wife and treatment does not involve enthusiastic agreement on every controversial topic of the day.

I don't care about my doctor's opinions as long as they behave professionally and do their job well.

If this is a reference to discussions around IQ, I'd suggest that equating "person X scores lower on IQ tests than person Y" and "person X is subhuman compared to person Y" is a frankly horrifying position and if that isn't the equivalence you're trying to draw then you might do better being less combative and more descriptive around your actual objections.