Racism is a word mate,thats all it is,different meanings to different people,a dictionary defenition is just one guys perspective of that word,most people have ingrained distrust of other ethnicities,its natural to be honest,people are tribal,we band together with those of a similar ilk,its human behaviour to be attracted to those who look,speak,and act like ourselves,check the crime stats for different areas,check the prison population stats,some ethnicities are well represented in prison populations in relation to their percentages in society.