How can you fix something that is truly rotten at its very core? The GOP base is a double whammy of religious conservatives and a rich class that openly supports a certain brand of economic Darwinism. Neither of these things are sustainable. You don't seem to be asking, "How can the GOP win again"? The GOP needs to gradually metamorphose back into a libertarian-leaning party that has pragmatic and realistic goals that are achievable through a market economy. Then again, until we get back to a period of sustained economic growth that spread across all income classes, there's no way for the GOP to shill it's brand of right-wing economics WITHOUT all the social conservatism BS to distract people. Voters in Louisiana, given two parties that are both liberal socially, are going to go with the party that will do more for them economically. That would be the Democrats.
The GOP, as it is, is a disgusting organization that feeds power to the upper classes through mass appeal to traditionalists and whites on issues that should not matter to them. With income disparity continually increasing, I would say the puppetmasters of the GOP are doing their job just fine. I'm not sure they want any "fixing", and any "fixing" that could be done in terms of becoming a party that is not gravely immoral would cost them any power they have.
So, yea... a slow a gradual shift towards libertarianism coinciding with better times for all. Basically, they'll come back to becoming a relevant source for something resembling "good" after progressive Democrats have cleansed the United States of all the awful crap the GOP itself has done to it in the last 35 years. Hey, it happened with Eisenhower after FDR brought us back from the brink.
