Lots to unpack with the genre that plenty of reasonable thinking people struggle with
Everything surrounding Burzum and Varg Vikernes in general
The homophobic murder that you’ve mentioned
The ongoing romanticism of nationalistic imagery, particularly with Germanic fonts and themes
Bandcamp can be a minefield sometimes. You can stumble onto a page and not realise that it’s a NSBM band until you’ve taken a second glance, as certain imagery and fonts are typical of both that side of the fence, and also the antifacistic side.
Essentially it’s a bit of a nightmare and it’s up to each person to pick the bones out as they see fit I suppose.