Negro is a Spanish word to describe the color black and the African people of those days and even today have a skin tone color of black which in Spanish would be Negro…
Spanish slave trader’s would call the people of Africa Negro because of the skin tone and not because of it being a racist word…
The word you are mixing with Negro that is racist as can be is the other N word which is meant to be racist as can be…
You can not request a country or culture to stop using a word they have used for hundred’s of years…
en.m.wikipedia.org
After you read that understand even though the English took the word and made it somewhat wrong the actual word is to describe the color black and as I wrote it was used to denote the skin color of the people in Africa and other parts of the World…
My wife calls herself Negro and she is Filipina, so it has to do with her skin color and her usage of the Spanish language when describing her skin color…