replacement theory, in the United States and certain other Western countries whose populations are mostly white, a far-right conspiracy theory alleging, in one of its versions, that left-leaning domestic or international elites, on their own initiative or under the direction of Jewish co-conspirators, are attempting to replace white citizens with nonwhite (i.e., Black, Hispanic, Asian, or Arab) immigrants. The immigrants’ increased presence in white countries, as the theory goes, in combination with their higher birth rates as compared with those of whites, will enable new nonwhite majorities in those countries to take control of national political and economic institutions, to dilute or destroy their host countries’ distinctive cultures and societies, and eventually to eliminate the host countries’ white populations. Some adherents of replacement theory have characterized these predicted changes as “white genocide.”
The conception of nonwhite immigrants in terms of negative racial and ethnic stereotypes has been commonplace in many white-majority countries, and the notion that nonwhite immigrants, and even long-established nonwhite communities, threaten the freedom and well-being of whites has been a battle cry among white racists. Likewise, the claim that national governments or unspecified elites are secretly directing the replacement and eventual elimination of whites has circulated among fringe groups of white supremacists, anti-Semites, and other right-wing extremists since at least the late 19th century.
The replacement fantasy received much wider attention in the early 21st century with the publication of Le Grand Remplacement (2011), by the French writer and activist Renaud Camus. He argued that since the 1970s, Muslim immigrants in France have shown disdain for French society and have been intent on destroying the country’s cultural identity and ultimately replacing its white Christian population in retaliation for France’s earlier colonization of their countries of origin. He also asserted that the immigrant conquest of France was being covertly abetted by elite figures within the French government. Camus’s sobriquet for his conspiracy theory, the “great replacement,” proved attractive to many right-wing activists and scholars in France, and his rhetoric and the substance of his theory were eventually adopted by leaders within the mainstream of French political conservatism, including Marine Le Pen, the leader of the right-wing National Rally (formerly National Front) party. The great replacement was soon espoused by right-wing parties and extremist groups in other European countries—notably including Hungary, where it was explicitly endorsed by the country’s authoritarian prime minister, Viktor Orbán.
During the 2010s replacement theory became popular in the United States among white supremacists, neo-Nazis, and right-wing militias, among other extremists, whose racist rhetoric and ideas were more freely expressed during the presidency of Donald Trump (2017–21). Right-wing media personalities, including Fox News commentators Tucker Carlson and Laura Ingraham, also attested to the conspiracy, though in ostensibly milder language that did not directly refer to race or explicitly invoke anti-Semitism. Thus, Carlson claimed that liberal Democrats were attempting to replace “you” (the viewer)—implicitly understood to be white—with immigrants from “Third World” (developing) countries—implicitly understood to be nonwhite—in order to create a permanent electoral majority loyal to the Democratic Party. Carlson in particular was intent on promoting replacement theory as a legitimate political viewpoint, and it was a major theme of his talk show, Tucker Carlson Tonight, since the program’s launch in 2016.
In part because of its endorsement by right-wing media and in part because Trump, in his own way, had signaled his support of racism toward people of colour (e.g., by indulging in racist slurs, by accepting the support of prominent avowed racists, and by refusing to condemn—or only reluctantly condemning—racist violence), key aspects of replacement theory came to be accepted by nearly half of Republicans and by a third of all Americans by 2022. Some Republican politicians endorsed the theory as a way of appealing to far-right members of their party and of demonstrating, to some degree, their continued loyalty to Trump.
Replacement theory has been widely ridiculed for its blatant absurdity. It has been just as widely condemned for its encouragement of racist violence through its toxic allegation that nonwhite immigrants (as well as the Jewish figures who allegedly direct their immigration) pose an existential threat to whites. The latter criticism has been tragically validated by the occurrence of several mass murders in the United States and other countries by white racists who clearly indicated their adherence to replacement theory before or after their attacks.