“If you have read this far, if you have contemplated the example of Adolf Hitler, you will understand that a God player like Barak Obama is far, far more likely to get us all killed.”
Even provided that we assume the worst about the motives of Obama (I personally believe him to be a rather standard-issue leftish liberal true believer, but not a revolutionary), I doubt that will happen.
In short, I think that Obama is far too weak-willed and undecisive to push hell-bent for his goals in the fashion of Adolf Hitler, and Obama is far more constrained by a stronger opposition and institutional framework.
That´s not a reason to rest easy, though. Obama isn´t really the problem. He is just one of a myriad of manifestations of the problem.
At a certain tipping point his will is irrelevant after fanning the flames of hatred. The London riots are the current display of leaderless violence. Consider the possibility of a Tutsi-Hutu type of horror unleashed scaled up one or two orders of magnitude, much like the MLK riots flashing across the country. Takes but a spark to start a fire.