Hehe, McSame's techiques are as old as he is and more. The attempt by politicians to divide people down their core bigotry and fear of the different and other is as old as the mental illness of paranoia. The problem, of course, is that people don't see what frightened and ignorant fools they are because they are ashamed of themselves and desparate for the respect of the flock as identical sheep.
If everybody is just like me I am safe from ridicule so I make myself just like you. The only problem, of course, is that you are an idiot and so I have to be too.