On racial categories, one case-in-point on how broad "racial" categories are is Central Asians. Central Asians (peoples from Turkmenistan, Tajikistan, Kyrgyzstan, Uzbekistan, Afghanistan, Kahazakstan, Turkey, Iran, etc.)are Caucasoid, yet they don't resemble Western Europeans very much. Central Asians have rounded (actually, semi-Monogoloidic eyes), big noses, fullish lips, wavy and/or curly hair, and brown skin.
About 100,000 years ago, some Central Asians traveled eastward into Asia (which was in the middle of an Ice Age) and became East Asians. Some traveled northward and westard into Eastern Europea (which as also in an Ice Age) and became Eastern Europeans (the first "White" people). And Central Asians themselves traveled from Africa about 180,000 years ago and became Central Asians (that's why Central Asians share many features with Black people, the lips and hair texture).
Even though Central Asians are Caucasoid, they more closely identify themselves with West Asians (Pakistanis, Burmese), South Asians (Indians) and East Asians than Europeans. They consider themselves Caucasoid Asians.
Pu Ti Da Mo [the Bodhidharma] (more commonly just called "Da Mo" in China) was the man who brought Buddhism to China in the 6th century. Who was from Central Asia (possibly Tajikistan or Kahazakstan), and he looked VERY Asiatic (and had some "Black"-like features):