The official Republican party platform for the 2012 elections called for a return to the gold standard, the complete outlawing of all abortions, the disenfranchisement of the (mainly black) residents of the District of Columbia, the vitiation of food and drug regulation, "consumer choice" in education, a flat income tax, and the building of a nationwide missile defence system. It had an entire 26-point section on "American Exceptionalism" based on "the conviction that our country holds a unique place and role in human history."
The most loathsome of Republican policies, however, is not listed on any party platform. It is the wholesale use of voter suppression as a strategy for electoral victory. Far from being mandatory, in the US, voting is a minority activity, governed by state-by-state rules and procedures. Less than 60% of the adult population votes in presidential elections, far less in congressional and local elections. Every American government is a minority government.
With its pro-rich tax policies, demonization of Spanish-speaking immigrants, opposition to all things feminist, anti-idealism that turns off young voters, and outright racism, the Republican Party simply can't win a fair national election. There just aren't enough rich middle-aged white male racists to win a majority. So it tries to suppress the vote of everyone else.
Republicans have made proof of citizenship (and, more importantly, mailing address) a major campaign issue, despite the fact that only 10 (yes, ten) cases of in-person voter fraud have been identified over the five federal elections between 2000 and 2010. The real purpose of these Republican-sponsored voter ID laws is to disenfranchise those who move frequently or have no fixed address: the young, the homeless, the very old, and the poor. In other words, Democrats.