"Racism is the belief that groups of humans possess different behavioral traits corresponding to physical appearance and can be divided based on the superiority of one race over another." Racism - Wikipedia
The notion that all races, despite evolving in different environments, evolved to be *exactly* the same, is nonsense. Clearly, if a species lived in an environment wherein adaptive traits will be selected for, then the species as a whole will adapt in order to better suit the environment. Over time, this will make them superior in ways other races are not *because* of this adaptation.
To give a specific example, African-Americans always have the Allele G (Gly180) which causes them to sweat more profusely than Koreans whom never have this allele, but instead have Allele A (Arg180). fgene-03-00306-g003.jpg (892×1167) (frontiersin.org) Frontiers | Pharmacogenetics of human ABC transporter ABCC11: new insights into apocrine gland growth and metabolite secretion | Genetics (frontiersin.org) To deem this racial difference as "racist", as akin to the Holocaust or a violent race-based attack, is nonsensical and malicious.
Furthermore, it is appropriate to say that African-Americans have a superior advantage (sweating) in surviving in hot, arid environments compared to Koreans, because sweating allows: cooling, detoxing of heavy metals, elimination of chemicals, and bacterial cleansing Sweating Benefits: Beyond Body Temperature Regulation (healthline.com)
Therefore, the "behavioral trait" of sweating allows African-Americans to be superior to Koreans in one way (two groups that are divided phenotypically, of which manifests in different "physical appearance[s]"), in regards to living in hotter environments. For "racism" to denote this scientific fact as negative should be considered malicious.
Theoretically, we could determine whether African-Americans are superior to Koreans, in regards to living in hotter environments, if we were to factor all relevant determinants (i.e. not just sweating). For example, Korean's higher I.Q. (roughly 106) may allow them to invent smart adaptations which are superior to merely being able to sweat. To say that this isn't possible is to say evolution had no effect on humans, which is nonsense (literal opposite of the effect evolution has) and malicious (slanders a scientific fact).
Furthermore, you could even determine if a race, overall, is superior to another, if you agreed upon valuable human traits (potentially: survivability, intelligence, civilization-building ability, reproduction capacity, absence of negative genes etc.), and then determined which races had the most desirable genes which best produced these desirable results. Again, to say that this isn't possible is to say evolution had no effect on humans.