The media often takes Coulter out of context. So I think Coulter is owed a chance to explain herself. I don't think you should jump on the James Carville bandwagon (although he's not Jewish); he was quick to brag about how Jews (liberals) he knows are outraged at Coulter.
I'm not sure if her statement was based on politics or theology.
If it was based on politics, then it makes some sense.
I think something related to politics was being discussed. Coulter was saying how things would be great with a massive support of Republicans--I think she really means conservatives, as she isn't too fond of Republicans who abandon conservative principles.
As you know, probably at least 80% of Jews vote for Democrats. So what I think she could have possibly meant, for Jews to be better people in terms of politics, more would vote for Republican candidates rather than just voting for Democrats, regardless of who the Democrat candidate is. If Jimmy Carter were the Democrat in 2008, there'd still probably be close to 80% of Jews who would vote for him.
Here's an article from a couple years ago that someone wrote:
http://www.weeklystandard.com/Content/Public/Articles/000/000/004/833ifcua.asp*Coulter wrote a book about if Democrats had brains, they'd be Republicans. I think what she really means if liberals had brains, they'd be conservatives. Because there are plenty of Republicans who aren't conservative.