It ain't Lord of the Rings, but it ain't the downfall of America either.
I believe, as you may also, that Communism is an extremly dangerous ideology. One that has resulted in the deaths of untold millions of people. It goes without saying that an important tenant of Communism is that capitalism and all of its proponents are bad.
The portion of the movie in question promotes that view. When one considers the number of people seeing the movie, as well as the power to sway people's emotions that a good movie has, I don't think dangerous is too far off base.
Granted, the world is not going to end with a little Commie-friendly dialogue in one movie. I also concede that George Lucas has every right to promote any ideology he wants in his movie. On the other hand, the menace of Communism is real, and intelligent decent people have a responsibilty to fight it wherever it appears; in the newspaper, entertainment, on college campuses, etc.
You must agree with me on some level, or why would you be on FR?