EDIT: It's not racist to highlight that different races have different genetic traits and that sometimes these traits can directly translate to pros/cons of biology developed based on specific factors over time.
It
literally is. The concept is called
scientific racism, and it has been
thoroughly discredited by modern science.
That's not to say populations aren't biologically different from one another; but linking that to "race" is fallacious, because "race" is not a biological or genetic reality. Examining the genetic differences between populations in different regions reveals not clear delineations but rather a continuum, and any attempt to separate out such populations into different categories is by its nature arbitrary.
Okay, so after a little reading I find this focus on the idea that one says "race" and thus must mean distinct with a notable genetic difference questionable. Race generally refers to population groups based on regional ancestry that developed notable phenotype.
Human DNA is highly malleable inherently. Add that to the fact that no one group has been in isolation enough to develop clear lines of differentiation and of course it's a continuous function of region....otherwise there would be differences as distinct as humans and elves.
EX: If someone says Asians are generally short, that's a reality of their phenotype developed by the region they developed in...."Race" is an identification of region group, generally, and the characteristics of said group. Asians aren't short cause they're Asian, they're Asian cause they came from (originate) Asia and a developed characteristic of such is that they're short and look a certain way. You could argue that we all originated from the same region if you look far enough but that's like saying we're all related if you do the same, yet we differentiate between family units unless you're close enough in bloodline to a certain degree.
*tilting head* I find the idea of acknowledging phenotype differences between races as racist strange. I find the idea that me saying one is generally taller and therefore has an advantage in certain circumstances makes me racist strange. <-This seems to be what you're implying
Edit: I do find this conversation a bit interesting, but we are getting off topic. I think the point made was that what elves do counts as cannibalism cause they're close enough to humans and dwarves such that it counts under definition....though I don't think that holds for lizard people.