I think many self loathing liberals are fed up with Obama and have become numb to him because he hasn't gone far enough. The reality is the guy is a left leaning centrist with an impressive inability to lead.
Obama hasn't done any real damage to the country that can't be fixed by someone with even a basic understanding of business, economics, and a thimble sized amount of leadership ability. If Hillary gets in there its gonna be only 4 years, no way that broad can handle the pressure of actually being responsible and accountable for something for the first time in her life. And as soon as she starts to crack mark my words the left will parade out the ol "war on women" mantra that is as old and tired as Hillarys jowls.
edit
Think about what the left wants
Ban guns
Destroy wealth
Punish white people
Punish success
Encourage mediocrity, failure, no responsibility
Ignore laws
Buy votes at any cost
Court the potential felon/criminal vote..
Limited military
Police who can't police
Equality for all but not really because not everyone is equal and thus they want forced equality at any cost.
any other stupid BS I forgot.