One of the drugs has a greater risk of nasty side affects for the black patient.
Which drug do you give the patient?
Should the research that tells you which drug to give be banned?
No, and nobody suggested anything like that, so if you're trolling please don't.
The point of TFA is that a study reporting "drug X has greater risks for black people" is weak science, because any given doctor has little way of determining whether their patient is genetically similar to whoever participated in the study. If the study had instead reported risk levels for, say, people of North African ancestry, then the doctor could ask about the patient's background and make an informed decision, instead of just looking at skin color and hoping for the best.
Such research is not being banned or proposed to be banned- in fact, there's a lot more interest now in understanding the relationship between genetic history and response to disease, but the work is still fairly primitive.
Imagine that you're a hospital who takes predominantly black patients, if you could modify the standard treatment to reduce Adverse Drug Experiences by 5-10% would you do it? Or would you say that it's unacceptable to use race as a variable at all, and continue to give the black people the same treatment as white people, resulting in more Adverse Drug Experiences in your black patients?
You can say that Ancestry is better, but often neither you or the patient actually know their ancestry.
You're arguing against a claim that neither TFA nor anyone here made. TFA doesn't suggest doctors should ignore past research that examined race - it argues that future research should examine specific identifiers instead of made-up ones.
> often neither you or the patient actually know their ancestry
Sure - which is why using race as a proxy for ancestry is a bad idea. If a drug has known risks to people of West African ancestry, and you have a patient with unknown ancestry, then you don't know whether that drug presents risks to the patient. Whereas, if the research on that drug had only reported "risks to black people" without examining ancestry, then you would believe you could tell by looking at a patient whether the drug presented a risk - and you'd be wrong.
Which drug do you give him?
This is know as the one drop rule, if one of your ancestors is black you are black. So maybe 95% of your ancestors are from Europe and you are still considered as black.
Latin has even a fuzzier definition. Latin american countries have been build -as the US- with immigration. Immigrants from latin american countries are white, black, asian, etc... Or whatever classification the USA might invent. There is no less diversity in the rest of the Americas than in the USA.