Nope, not the same "in Tolkien" and also not the case with some of the Warcraft stuff you listed. Orcs have nothing in common with blacks, they are generic Eurasian nomads. Elves are also in no way based on Asians. One building type in Darnassus looks a bit like a Japanese pagoda, that's it. Elves are from Germanic mythology and more specific Warcraft Elves are at this point just Warhammer Elves without the cool stuff. Gnomes are also not based on any specific culture. They are a race that is just based around a profession. Humans are not based on euro-whites, they are generic medieval fantasy humans with western modern day morals.
I will refrain from going more off topic and talking about Tolkien, but holy shit, you are so wrong.