lism. In Pluralistic Universe (1909), William James espoused the idea of a "plural society." James saw pluralism as "crucial to the formation of philosophical and social humanism to help build a better, more egalitarian society.
The educational approach to multiculturalism has since spread to the grade school system, as school systems try to rework their curricula to introduce students to diversity earlier—often on the grounds that it is important for minority students to see themselves represented in the classroom. Studies estimated 46.3 million Americans ages 14 to 24 to be the most diverse generation in American society. In 2009 and 2010, controversy erupted in Texas as the state's curriculum committee made several changes to the state's requirements, often at the expense of minorities. They chose to juxtapose Abraham Lincoln's inaugural address with that of Confederate president Jefferson Davis; they debated removing Supreme Court Justice Thurgood Marshall and labor-leader Cesar Chavez and rejected calls to include more Hispanic figures, in spite of the high Hispanic population in the state.
Multiculturalism is seen by its supporters as a fairer system that allows people to truly express who they are within a society, that is more tolerant and that adapts better to social issues. They argue that culture is not one definable thing based on one race or religion, but rather the result of multiple factors that change as the world changes.
Historically, support for modern multiculturalism stems from the changes in Western societies after World War II, in what Susanne Wessendorf calls the "human rights revolution", in which the horrors of institutionalized racism and ethnic cleansing became almost impossible to ignore in the wake of the Holocaust; with the collapse of the European colonial system, as colonized nations in Africa and Asia successfully fought for their independence and pointed out the discriminatory underpinnings of the colonial system; and, in the United States in particular, with the rise of the Civil Rights Movement, which criticized ideals of assimilation that often led to prejudices against those who did not act according to Anglo-American standards and which led to the development of academic ethnic studies programs as a way to counteract the neglect of contributions by racial minorities in classrooms. As this history shows, multiculturalism in Western countries was seen to combat racism, to protect minority communities of all types, and to undo policies that had prevented minorities from having full access to the opportunities for freedom and equality promised by the liberalism that has been the hallmark of Western societies since the Age of Enlightenment. The contact hypothesis in sociology is a well documented phenomenon in which cooperative interactions with those from a different group than one's own reduce prejudice and inter-group hostility.
C. James Trotman argues that multiculturalism is valuable because it "uses several disciplines to highlight neglected aspects of our social history, particularly the histories of women and minorities [...and] promotes respect for the dignity of the lives and voices of the forgotten. By closing gaps, by raising consciousness about the past, multiculturalism tries to restore a sense of wholeness in a postmodern era that fragments human life and thought."
Tariq Modood argues that in the early years of the 21st century, multiculturalism "is most timely and necessary, and [...] we need more not less", since it is "the form of integration" that (1) best fits the ideal of egalitarianism, (2) has "the best chance of succeeding" in the "post-9/11, post 7/7" world, and (3) has remained "moderate [and] pragmatic".
Bhikhu Parekh counters what he sees as the tendencies to equate multiculturalism with racial minorities "demanding special rights" and to see it as promoting a "thinly veiled racis[m]". Instead, he argues that multiculturalism is in fact "not about minorities" but "is about the proper terms of relationship between different cultural communities", which means t