heterosexualism vs straightness

heterosexualism

noun
  • Synonym of heterosexuality 

  • Discrimination against non-heterosexual people on the basis of their sexual orientation. 

  • The state or existence of heterosexuality, including the traditional gender roles that accompany it. 

straightness

noun
  • The state or quality of being straight (especially in the sense of "heterosexual"). 

  • The result or product of being straight. 

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