Thanks to the development of transportation and globalisation, people these days can travel anywhere they want, hence multicultural cities have emerged. Nevertheless, discrimination regarded with people’s nationalities, races or religions is a debateable issue that requires immidiate solutions. Some people believe that these problems can not be solved because they are nature-made while others think that they are artificial and some actions can be done to tackle these issues. This essay will indicate some reasons why they are man-made and suggest some possible remedies.