The conflation of white supremacism and naziism is pretty much entirely political maneuvering. They believe very different things about the state, forms of government, gay people, culture, land use and many other things. Not to mention that only a small number of people termed white supremacists actually are (it conflates believing in racial differences (which are often not just white>everything) with believing in racial segregation with believing that the "white" ethnic group will form a better society),