[yellowapple]

There's also the even-lower-hanging fruit: Vikings were "badass" and "hardcore" and stereotypically too busy raping and pillaging to care about silly things like "women's rights" or "minority welfare" or "climate change". They also happened to be white, unlike the similarly-stereotyped Mongols and Huns further east.

Those two factors lend themselves to white supremacists wanting to model themselves on those stereotypes, never mind that reality was much more nuanced than those stereotypes (which developed specifically from the English complaining about their invaders rather than from any actual understanding of Scandinavian culture/society) or that hardly any of these white supremacists would make much of a Viking warrior (stereotypical or otherwise) anyway.