In all parts of our globe we find ethical hierarchy. It's an indirect status with fixed judgements and points of view. Social distance and discrimination predominate and make it easier to use categories such as "race", "naiton" or "culture".Social indifferences have been built up.
We can find he refusal because of the different skin color or adopted biological differences. We see misinterpretation of poverty and backwardness. We say of every refugee, i.e., that he seeks asylum.
Most racial prejudices have its roots from the heritage of colonial supremacy. Justification of slavery goes back to the 17th century. In early colonial history skin color was not the main reason, it was the paganism of original inhabitants in America, Africa and Australia. bringing Christianity started the forward roll.
Terms such as "Indian" and "Negro" an be found even in world's literature: the good-natured "Winnetou" (German Karl May, 1842-1912); "Friday" (Freitag), the noble savage in "Robinson Crusoe" (Daniel Defoe, England, 1660-1731); or "Uncle Tom" (Harriet Beecher-Stowe, USA, 1811-1896).
Political conflicts between "white colonial supremacies" and "colored subjects" have been explained and described as racial segregation - many times instigated by Christian missionaries. Innumerable examples in world history proves brutal force and power up to genocide.
Reacial prejudices?
"Love your enemy as yourself!" (Leviciticus 19:18). Am I am enemy as expatriate in the Philippines?
"When alien live besides you in yourland, do not mistreat him. The alien living living with you must be treated as one of your native-born. Love him as yourself...." (Leviticus 19:33,34).