So you aren't an absolutist when it comes to abortion and worked to elect Bush even though he approve the three exception rule. That's good. You aren't as single issue and minded as I thought.
I think alot of people are simply talking past each other here - I don't know too many people that would refuse to allow abortion when the life of the mother is at stake. That's considered to be the uncompromising pro-life position.
And most don't have a problem voting for someone who supports exceptions in the case of rape and incest, even if they would prefer to not see those exceptions made.