Demography is destiny. We need to reform our immigration polices as well as stop fighting on the battlefield dictated by the Dems. We are still a center right country. The Reps need to go after the Reagan democrats and embrace policies that recognize we are a post racial society. We should go after discriminatory polices like affirmative action and minority business set asides. The reality is the Dems are the party of bigots and racists who prey on racial, gender, and ethnic differences and encourage people to identify with these various groups rather than as individuals.
I'm not sure how we could still be a center-right country when the Speaker of the House and the President of the United States are two of the most left-wing, if not THE most left-wing politicians to hold those offices. Plus, the Dems won the Presidency with an inexperienced black candidate with a foreign name while also collecting very comfortable majorities in both the House and Senate. They have also picked up many gubernatorial seats and hold a majority of the governorships.
As for the Reagan Democrats, Reagan first came to office almost 30 years ago. The Reagan Democrats were a much older demographic then and an even older demographic now, with many that have already passed on.
I don't know exactly how the GOP will come back to the strength in enjoyed in the first half of this decade, but I'm confident that the Reagan Democrats won't be a significant reason why as they are a shrinking demographic - shrinking in number and shrinking as a percentage of the total electorate.