re: #636 prononymous
This article from Stanford has a pretty good definition:
Multiculturalism is a body of thought in political philosophy about the proper way to respond to cultural and religious diversity. Mere toleration of group differences is said to fall short of treating members of minority groups as equal citizens; recognition and positive accommodation of group differences are required through “group-differentiated rights,” a term coined by Will Kymlicka (1995). Some group-differentiated rights are held by individual members of minority groups, as in the case of individuals who are granted exemptions from generally applicable laws in virtue of their religious beliefs or individuals who seek language accommodations in schools or in voting.