It's called "cognitive dissonance" often involved in reducing anxiety about conflicting cognition.
Remember "The Fox And The Grapes" one of Aesop's fables, the story of a hungry fox trying to reach some grapes hanging high on the vine but was unable to, in spite of jumping with all his strength.As he went away the fox remarked "Oh, you aren't even ripe yet! I don't need any sour grapes"
People who speak disparagingly of things they can't get would do well to apply this story to themselves.
His story of backstabbing and betrayal is well known in Sabah.He has switched parties God knows how many times, PBS, PBRS, AKAR, UPKO and PKR.In 1993 he applied to join UMNO but was rejected. He has joined almost every functioning political parties under the Sabah sun.
In 2010, out of desperation and frustrated with Anwar Ibrahim treatment of him as a pariah politician he left PKR to form United Borneo Front, aimed to protect the rights of Sabah and Sarawak under the 20-point agreement.
The people of Sabah, particularly the KDM, should open their eyes, is this man going to look after their interests or he is all for himself.
Read his inadequacy and resentment below.