Group identity politics has poisoned many other countries, including at various times Kenya, Czechoslovakia, Fiji, Guyana, Canada, Nigeria, India, and Rwanda. In some countries the polarization has gone as far as mass expulsions or civil war.
The desire of many Americans for a "post-racial" society is well-founded, though the belief that Barack Obama would move in that direction was extremely ill-advised, given the history of his actions and associations.
This is a president on a mission to remake American society in every aspect, by whatever means are necessary and available. That requires taking all kinds of decisions out of the hands of ordinary Americans and transferring them to Washington elites-- and ultimately the number one elite, Barack Obama himself.
Like so many before him who have ruined countries around the world, Obama has a greatly inflated idea of his own capabilities and the prospects of what can be accomplished by rhetoric or even by political power. Often this has been accompanied by an ignorance of history, including the history of how many people before him have tried similar things with disastrous results.