The net net is that they were so far out there that there's no real portion of the U.S political spectrum that neatly aligns with their views. Some bits seem to match, like far right extremists wanting all sorts of freakish demographic change or far left extremists wanting the Federal government to control every aspect of society, but then other bits really don't; the extreme far right is generally anti-Big Government and the extreme far left is generally anti-genocide.