Stop trying to figure out what part of the Republican coalition needs to be purged. I think the alliance of religious conservatives, economic conservatives, and libertarians can be preserved. Why? In this climate of liberal triumphalism, the Democrats will over-reach.
The liberal economic policies of trying to bail out every industry in a downturn, protectionist trade policies, and the re-unionization of the workforce will be disastrous, making the economy much worse than it is now. Forcing taxpayers to pay for abortions will not be popular, even for those who agree that abortion should be legalized. The schools are going to get even worse and even liberal parents more alienated, once the teachers’ unions get everything they want. Hollywood will get even more depraved, now that it feels that it is in power. The courts will force gay marriage on states that don’t want it.
Conservatives should just wait. The left will make conservativism attractive again.