Massive Freedom Fighter. The Iron Heel was a truly amazing work, amongst others.
^^^This. The science-fiction/future history works of Jack London are highly underappreciated imo, in particular his
Scarlet Plague is a fantastic and frightful work especially considering the date of his projected pandemic and last year's Ebola crisis (
http://www.gutenberg.org/ebooks/21970). Then again he wrote this spiritual predecessor to
Turner Diaries (
http://london.sonoma.edu/Writings/StrengthStrong/invasion.html), although I've read a plausible essay arguing it was meant to be satire.