I don't really disagree with your general point, but starting with the organized effort to "get Clinton", and the current flowering of the 30 year Conservative effort to take back the country via slow buy-up of the media, think tanks, etc., we have entered a unique era in American politics.
I believe that the backlash against the Bush era can make this country more progressive than ever. It's clear this won't happen easily. While we are indeed a mix of beliefs, I think the majority of Americans, when not confused by false fears and mis-information, are closer to progressive than not. Unfortunately, most elected Democrats have either sold their souls to Corporations or have their ears tuned only to the "wisdom" of political consultants, and have failed to notice it's a whole new ball game now. We will need to kick and kick and kick the Dems into functioning, at the same time we need to support them unquestionably against the Republicans.
Poll info here:
http://www.washingtonpost.com/wp-dyn/content/article/20...