Ah yes, Myth of Male Power signified a major shift in the Men's
  Rights movement. I've never been a part of the men's rights
  movement directly but I'm a more a product of the mythopoetic
  movement's way of thinking rather than Myth of Male Power way of
  thinking. Neither's invalid, but I'm a little more Bly and a
  little less MGTOW; but Farrell was extremely influential in
  shifting the discussion ethos to how it is now and has helped
  provide a voice for many (different than the drum circle,
  mythological "let's dress in loin cloths and discover manly
  man-ness" of the mythopoetic movement) which also mirrors the
  dialog shifts in feminism.* it was a shift in conflict theory in
  general. Neither's worse or better, just different slant.