People get tired of a negative message, a downer, a bummer. Preaching to people that they need to feel guilty about their history. It was doomed to start imploding. It happened in the 1970s with Jimmy Carter's "malaise." People got tired of it. It literally made them tired. Eventually, they elected Reagan because they were tired of being preached down to by someone unhappy and depressed about his country. The Obama karma is running out of steam. Liberal white guilt is finite, not infinite. Preying upon that with an arrogant and smug sense of entitlement can never be a basis for leading this country. People will get tired of that. And they won't want to hear it anymore.
It's no big "Secret." It's the basic "Law of Attraction." Negative energy turns people away.
The Obama Malaise guilt trip would never work. It goes against American culture. They see a well-paid, well-fed, Harvard-educated, smug, condescending, pampered beneficiary of affirmative action and see the con game. That's a bad cultural fit for "Reagan Democrats."
That preachy voice gets on people's nerves, too.