The so-called "great replacement" theory is all the rage among American right-wingers, from former Fox News commentator Tucker Carlson to Republican legislators like Sen. Ron Johnson (Wis.) and Rep. Lauren Boebert (Colo.) Bluntly white supremacist at its core, it holds that liberal elites (frequently, though not always, a dogwhistle for Jews) are trying to "replace" white Americans with non-whites, particularly non-white immigrants.
Donald Trump drew from this ideological well when he ran for president in 2016, arguing at the time that "this will be the last election that the Republicans have a chance of winning" because if illegal immigrants were "legalized" then "they're going to be able to vote and once that all happens, you can forget it." By 2020, Trump was pulling from great replacement arguments to justify the Big Lie which denied that he had lost that year's election to Joe Biden.
