I suspect Breierle will not be the last to put his obsessions into song. If I remember right, the Freikorps of post-WW1 Germany (the militias that morphed into the Nazi SA) had a song repertoire, and from what Klaus Theweleit writes about them their looniest hard core were much like the incels - their creative manifestations were insanely misogynistic.

Not something that seems to have caught on in the UK - yet.