Another well-reasoned take on the reason for the republican's losses this election:
The Party that Doomed its Nominee
The article concludes with this:
I think the point that many of the people in the GOP are willfully clueless about these demographic trends is an accurate one. I recently had a debate on facebook with some right-wing Christian conservatives, who were railing about the abortion issue, gay marriage, illegal immigration, etc. They were convinced that their views represented the "center" and that anyone who believed otherwise was far extreme left. They were also convinced that the way to win the Presidency was to run more socially conservative candidates that held true to these extreme social positions. They disagreed vehemently with the notion of taking the party closer to the center on social issues, saying that was just a fantasy of democrats trying to make the republican party more like the democratic party.
The simple fact of the matter is that when a huge chunk of your base strongly feels this way, and has the hubris to decide they are right on every social issue, no matter the facts or majority opinions, and that it is basically their way or the highway on these issues, then the party has no hope of reaching out to the broader demographic. Minorities, gays, women and nonreligious folks will avoid the republican party like the plague, even if they have conservative leanings on certain Constitutional and fiscal issues.