Over here, many of the actual national socialists absolutely loathe the man, and claim he ruined any possibility of credible political movement rise. However, fringe politics tend to have strong magnetism for... fringe people.
Way way better than this sort of irony filled documentary, is the book by Jiri Keronen, "Pekka Siitoin teoriassa ja käytännössä". Only in Finnish, and currently sold out. Like name of book suggests, its Pekka Siitoin in theory and practice. Keronen read everything man had put out there, and without typical oozing levels of irony, he actually goes through the core ideas. Explains the theories and claims, and put them into context of wider occult theories.
Anyone who has read his book, should know, he was not national socialist in style of original german movement. There is barely biological component plus very rarely obsessive white power sentiment.
I doubts there needs to be much english written material of his. You will find the similar ideas out there. His role in Finland would be more like sign of those times. If someone isn't a little bit nostalgic about media space being filled with top suicide rates, topless bars, kettutytöt, matti nykänen and pekka siitoin, I do slightly question are they even finns! haha...
