It's called the "let's you and him fight" game

Said Kdaug in a comment at Balloonjuice:  

I think we get trapped into a false paradigm of “right/left”, “Democrat/Republican”, “Christian/Athiest” all the time. And I think it’s deliberate, propagated by the people who own the media and broadcast it.

The real paradigm: rich/poor.

And it’s always been the paradigm. In all cultures, in all countries, throughout history.