At times carelessly characterized as “right-wing extremism” or “organized racism,” white nationalism is a subculture unto itself. Though white nationalists often consider themselves heirs to the Southern Confederacy or the Third Reich, their agendas are fitted to the contemporary world. The movement’s core claim is that the global white population is being bred out of existence thanks to a confluence of multiculturalism, interracialism, and progressive social causes like feminism — all of which are usually seen as having been orchestrated by Jews. The movement calls on whites to overthrow governing regimes or withdraw into segregated all-white enclaves. White nationalism has never had a centralized organization, but was instead manifest in scores of small activist groups that sprung up throughout Europe, the Americas, South Africa, and Australia during the 1980s and 1990s. These groups often formed around a charismatic leader who would enforce both ideological dogma and order.
— Read on archive.is/AGCv3

For my own reference.