I think it should be obvious that Hillary lost because people who voted for Obama did not vote for her, whether they did not vote, voted for a third party candidate, or voted for Trump. She needed to win the votes of people who voted for a democrat the last two presidential election cycles and she was not successful. You cannot blame Gary Johnson or Jill Stein. At the end of the day Hillary lost on the merits of her candidacy in contrast to her opponents. Too much baggage.