If people hate her, and Koresh knows many do, more of them hate every other potential challenger.
http://www.realclearpolitics.com/epolls/latest_polls/president/
The thing about Hillary hate is that it's a lopsided dumbell. The right side of that dumbell wouldn't vote for a Jesus/Albert Schweitzer ticket with a D after it and would crawl over broken glas to vote against any Dem, so no change there. The long bit in the middle is actually quite receptive and positive about her. The left side of that dumbell is forever seeking a perfect candidate that would have no chance in a real national race like Kucinich or Sanders, mostly votes Dem in the general anyway after much grumbling, because as anyone sane knows either the R or the D nominee will be president and there is only ever one rational choice there, and have generally been convincingly shown what happens when they when they throw a hissy fit and waste votes like with Nader (against, it should be said, a man now seen as a much purer Dem than he was when he was running). Only the most intransigent fringe left idealists would not vote Dem in a general, and that way of thinking is hopefully as rare as people in this group refusing to vote for her because she quotes the Bible instead of Ingersoll. Waiting for perfect and eschewing the good means an unending stream of bad.
Both demographics and polling indicate there is far less likely than in 2000 to be a situation in which such a small spiteful group can foist a RW regime on the rest of us again.