Emmanuel Levinas argues that much of Western thought "suffers from an allergy to the other." All over the world this is demonstrated through the unlimited lists of isms; sexism, ageism, racism, classism, etc. There is no monopoly on hatred of the other.
This reality is manifest in the ill-treatment and prejudice against people because they belong to a certain demographic which is different from our own. The histories of genocides, slaveries, concentration camp internments, and holocaust against groups like Armenians, Jews, Native Americans, African-Americans, Japanese-Americans, are all examples of the sin of racisms and xenophobia. In addition, the history of patriarchy and kyriarchy has left too many women ill-compensated, marginalized, exploited, abused, raped, and murdered at the hands of a society that sees woman as less-than man.