They're also more likely to suffer strokes and lung cancer. Would taking such things into consideration make a doctor racist?
It is an interesting question of whether discernment equates to discrimination.
This has been studied and is wrong. Certain people of certain ethnic groups in certain specific locations have higher risks. If you average all french people from all of france there is no significant difference. Check the current scientific studies. They have all found location and ethnicity add to risks, not just ethnicity or just location.
It is easier for Doctors to run a test if even only 10% of the population is at risk because the test doesn't hurt the other 90%. Also it add to their finances.