Although critical theory can seem highly abstract, it has inspired and informed concrete political movements in the 20th and 21st centuries. This section examines two of these, critical race theory and radical democracy. Critical Race Theory One of the most controversial applications of critical theory concerns its study of race. Critical race theory approaches the concept of race as a social construct and examines how race has been defined by the power structure. Within this understanding, “Whiteness” is viewed as an invented concept that institutionalizes racism and needs to be dismantled. Critical race theorists trace the idea of “Whiteness” to the late 15th century, when it began to be used to justify the dehumanization and restructuring of civilizations in the Americas by Britain, Spain, France, Germany, and Belgium. As these colonizing nations established new societies on these continents, racism was built into their institutions. Thus, for example, critical race theorists argue that racism not as an anomaly but a characteristic of the American legal system. Ian Haney López’s White by Law: The Legal Construction of Race argued that racial norms in the United States are background assumptions that are legally supported and that impact the success of those socially defined by them. Critical race theory views the institutions of our society as replicating racial inequality. The idea of institutionalized racism is not unique to critical race theory. Empirical studies, such as those carried out by W. E. B. Du Bois, have outlined the structure of institutionalized racism within communities. Critical race theories are unique in that they do not see policies that arise from these empirical studies as a solution because these policies, they argue, arise within a power structure that determines what we accept as knowledge. Instead, critical race theorists, like other branches of critical theory, turn to the philosopher, the teacher, or the student to relinquish their role as neutral observers and challenge the power structure and social institutions through dialog. Critics of this approach—and other critical theory approaches to education—worry that these programs seek to indoctrinate students in a manner that bears too close a resemblance to Maoist “self-criticism” campaigns. Radical Democracy “Radical democracy” can be defined as a mode of thought that allows for political difference to remain in tension and challenges both liberal and conservative ideas about government and society. According to radical democracy, the expectation of uniform belief among a society or portion of a society is opposed to the expressed and implied tenets of democracy (Kahn and Kellner 2007). If one wants freedom and equality, then disparate opinions must be allowed in the marketplace of ideas. One strand of radical democracy is associated with Habermas’s notion of deliberation as found in communicative action. Habermas argued for deliberation, not the normalizing of ideas through peer pressure and governmental influence, as a way in which ideological conflicts can be solved. Though Habermas admitted that different contexts will quite naturally disagree over important matters, the process of deliberation was viewed as making fruitful dialogue between those with opposing viewpoints possible (Olson [2011] 2014). Another type of radical democracy drew heavily on Marxist thought, asserting that radical democracy should not be based on the rational conclusions of individuals but grounded in the needs of the community.