Have the 2008 and 2012 election wins ushered in a new era for American race relations? After all, this is a "post-racial America", where a black man was voted President twice by a clear majority of citizens. Right?
No. Barack Obama won both elections for one reason only - demographic change. If it wasn't for demographic change, both McCain and Romney would have won landslides equal to that of Ronald Regan. Consider this - Obama lost the white vote by 20 points (60% Romney, 40% Obama). In 1980 this was the margin of loss by which Carter lost the white vote to Regan. The difference is just that in 1980 the white vote was 88% of the electorate, now it is only 72%. Obama badly lost the white vote (39%), but he overwhelmingly won the black (93%), hispanic (71%) and Asian (73%) votes. If you give Romney his 2012 results by race, but use the 1980 demographics, Romney would have won the election 53% to 45% - almost the same spread as Regan beat Carter (8 points vs 9 points). This is not to say there hasn't been enormous improvements in race relations in America, but the election of Barack Obama does not mean that race doesn't matter.
The Republicans need to be really, really scared. The white vote is just going to decrease in every election from now on. In 2011 white babies were a slight minority in America - using the demographics of the 2011 birth cohort, Obama would have won 59% of the vote. This is going to be a slow process, but unless the Republicans stop their race hatred they are simply doomed. Actually, I'll go a little bit further: they need to stop their race hatred, their homophobia, their Christian supremacy ideas and their misogyny. Among people who identified as LGBT, 90% voted for Obama. Among the non-religious, Obama won 70% of the vote. Among women, Obama won 55% of the vote (although he lost white women). Every growing demographic is being alienated by the Republicans - whether they are Black, Hispanic, Asian, LGBT or atheist. The only groups that the Republicans can really rely on are white men (62% voted Romney) and the highly religious (59% of weekly Church-goers voted Romney). That is a dying demographic, and the Republicans need to wake up and realise that from now on, America is a pluristic society.
Finally, the election result that may have the most profound, long-lasting impact on politics in America: Puerto Rico just voted for Statehood (61%). Now a petition for Puerto Rico to become the 51st state of America will go before Congress, and once it is accepted (I assume the Republicans try to block it for awhile), Puerto Rico will become a proper State. This will be huge. For the first time, ~4 million American citizens will get to vote in Federal elections, having 2 Senators, 5 Representatives and 7 Presidential Electors. For the first time ever, a new state will be accepted into the Union that is non-white (all other states were not accepted until they were majority white, even if now a few have become minority-majority). For the first time ever, there will be an officially bilingual state in the US (Spanish/English). The new America is evolving, and it is going to look more diverse, more multicultural and more mutually respectful.