NazBol is very interesting. From what I see. It seems like a meme used almost exclusively by the Auth-Left as a way for them to have Leftist unity, through memes. Which doesn't actually make it an ideology in most cases, but instead, an opioid for the Authoritarian Left wing.
Or in other words, the Leftist version of the Alt-Left.
Is it Cancerous? yes, very. But if you ask me, that only makes it better.
But there's also Duginism. Which is basically just Leninism for religious people.