There is no scientific evidence that any racial or ethnic group prefers KFC Extra Crispy over Original Recipe (or vice versa).
Food preferences are shaped by:
Attributing fried-chicken style preference to race is stereotyping—reductive and unsupported. KFC's own market research segments by demographics, but flavor preference crosses all lines. Both recipes sell globally because they appeal to universal cravings for salt, fat, crunch, and umami—not racial identity.