Racial Prejudice

This topic is inspired by the book "Merchant of Venice". In the book, Jews were treated as lower class beings by the Christians and are looked down upon, spat at and insulted by these "higher class" men. All these mistreatment all thanks to their religion. Now if we think of our daily lives, is there racial prejudice? Are people of a different religion treated as outcasts or "avoidable" people by others of different religion? The honest answer is yes.
Racial prejudice is something that is unavoidable even in "multi-racial harmonious countries like Singapore. Those of a religion of minority people are often treated as outsiders. For example( not being racist), blacks are treated badly due to their skin colour. Insults such as "nigger" are directed at them because of their skin colour, even in Singapore. For example, when I was walking past a few black workers, I saw how hard they were working, digging up the dirt e.t.c, while their superior, a chines man,was merely standing there and shouting instructions at them. Although this might seem natural as superiors are to treat the "inferiors" as someone of lower class. However, when the Chinese "dictator" was about to leave, he said something to one of the workers, "if you slack, you die". Although this was a treat used to make the worker work diligently, it is still awkward as compared to how Chinese superiors would treat those of their same religion of lower status as equals when they talk, becoming brotherly. P.S: this was just an example and is not being used as a stereotype.
Even in the past there was racial prejudice, such as during Hitler's time(which we are learning about during History). Jews were mass slaughtered alongside suspicious Germans that were suspected of being anti-Nazi. All "enemies of the Germans were slaughtered in concentration camps and yet, the Jews are included as well. The Jews had done nothing to wrong the Germans or harm them but were merely leading that peaceful lives and yet they are murdered ruthlessly because they are Jews and not Germans.
All this actions taken by other religions towards the minority is really not justified as they are merely bullying those that they think are inferior, which is common in the current society that we live in as those that are strong can choose who or who not to bully. Which reminds me of "survivor of the fittest": only the strongest will live on while the weak die.