I went to Hampshire College in 1990/1991. 25 years ago. The
  birthplace of politically correct in its academic form was from
  1988 and Smith College, an all girls college in the same town
  (Amherst MA) who distributed these little pamphlets to us and
  then nationwide.

  Already its impact was felt in less than two years. I found this
  from June 1990, three months before I joined and I remember
  reading this back when I was 18 in 1990, in a piece written
  about what was _then_ current:

  "Clothes, intellectual positions and even behavior are governed
  by the code of the "politically correct," which is to say
  antisexist, antiracist, antihomophobic, antispecist. One of the
  unforeseen aspects of Hampshire turned out to be how sexually
  uptight the place was, even in the anything-goes atmosphere of
  the early 70's. And some of those inhibitions endure as students
  sacrifice spontaneity to project correct behavior. No one would
  undo Hampshire's committment to feminist values, which has
  produced on-site day-care facilities and positions of power for
  women, but all that right thinking can sometimes have
  puritanical overtones..."

  So I know political correct well, as well as its hypocrisy and
  dangers. I believe in the underlying sentiment, which is "be
  nice to your neighbor", and "not just sticks and stones but
  words hurt too" and all that.

  PC started off in the US military in the 1980s, as their code of
  conduct in dealing with foreign nations. But like the telephone
  game, it got bastardized and the message shifted and changed and
  morphed over the last 25+ yrs.

  The form you know was developed through the lens of white, very
  rich, upper class girls going to a girls' school in 1988, who
  got a hold of the military standards and decided it would be
  good for all rich whites to follow.

  I'm not a rich white (I couldn't afford to stay at Hampshire)
  but I learned a LOT about how the thinking is a little
  different.

  and I've watched over the last 25 years as the influence of this
  little pamphlet has changed things. Some things for the good but
  some for the worse. Some for the much worse.

  So, I understand your position.