intolerance vs racialism

intolerance

noun
  • The state of being intolerant. 

  • An intolerant word or action. 

  • Extreme sensitivity to a food or drug; allergy. 

racialism

noun
  • Racism, belief in different races and that some are superior; policies or practices promoting the dominance of one or more races over others. 

  • The belief that humans can be categorized as belonging to distinct races, each race being characterized by fixed and heritable traits. 

How often have the words intolerance and racialism occurred in a corpus of books? (source: Google Ngram Viewer )