False.
Only if ordinary people cannot tell the difference between a Namibian, a Norwegian, and Navajo.
99% of Brazilians are descendants of either Europeans or Africans.
90% of Mexicans partly or whole descendants of Amerindians
Google is your friend.
Ethnic groupsCIA World Factbook: Mexicowhite (includes Portuguese, German, Italian, Spanish, Polish) 55%,
mixed white and black 38%,
black 6%,
other (includes Japanese, Arab, Amerindian) 1%
Ethnic groupsmestizo (Amerindian-Spanish) 60%,
Amerindian or predominantly Amerindian 30%,
white 9%,
other 1%
Very pat.
But different anthropologists have different theories, many along the lines of politicial correctness. Google is not my friend, and not the friend of any conservative.
Read Coon about root races.