Rudi Giuilani will never get my vote for POTUS. Period. I don't vote for liberals, even if they have an "R" next to their name on the ballot. Could never vote for the liberal Republican Governor of Kalifornia either. I seriously doubt RudiG would get the GOP nomination. If he did, conservatives would leave the GOP in droves. In my book, there is little difference between a GOP liberal and a liberal Democrat. In that regard, party affillation has nothing to do with political philosophy. Some consider RudiG to be a Scoop Jackson/JFK Democrat. From my POV, all three men fall into the liberal catagory. None fall into the catagory of being a Reagan conservative.
While your thinking is exactly what the Left loves to hear the reality is that the exodus of the Ultra Right will be overcompensated by the attraction of the less conservative.
Reagan would never have agreed with your sentiments. He made a point to attract those from the other party who could be reached by reason. Your branch would rather spit in their faces and insult them because they do not oppose ALL abortion.