This should not be a surprise to anybody who understands the philosophy under which Obama, his regime and his party operate. First of all, they are disciples of Marx and strict adherents to Marxism. If you believe an animal that flies, swims, has webbed feet, has a bill, a green head and weights about two or three pounds must be a mallard, then this logic also says based on the actions of Obama, it is safe to say he must be a devout follower of Marx.
When we understand this, we can understand it is not in his make up to be a person who believes in uniting. Everything he has been taught and believes is that he is in a war. He is leading the proletariat against the capitalist; the exploited against the exploiter. This is class warfare pure and simple. The true Marxist believes the exploiter must be abolished. He believes society will only be fair when all proceeds of labor are shared fairly with all, whether working or not and they the Marxist/Progressives will determine fairly. In his world, there is no compromise, there is no middle ground, the ends always justify the means, there are no rules and they who advocate for the oppressed never have to justify their actions. This is the teaching of Marx in which Obama, head of the regime and leader of the Marxist/Progressives is immersed and indoctrinated.