Democratic party is that they haven't cultivated enough good will with the rural areas.
The biggest divide in America is rural vs urban. Almost every state, with few exceptions, Red or Blue, can be broken down by population density. Rural goes Republican, Urban goes blue.
I think in order to create a "let's get single payer healthcare" and other such majorities elected, the Democrats are going to have to figure out how to gain a better handle on the rural voter mindset.
It's very apparent to me that outside of cultural issues, generally Democrats have the interests of the Rural voter in mind. To be simple, rural voters are generally working class and that's the Democrats stock in trade. However, rural voters don't see it that way, mainly because of TAXES. The simple paradigm they've accepted is that Republicans mean lower taxes and Democrats mean higher taxes. It's about that simple. Even now, when Barack offers better tax cuts to the working class, they will find it hard to believe.
Also, there's a model for campaigning in rural areas that is compartmentalized and scaleable that is never pursued by the Democrats. Republicans have churches, which are persistant, but Democrats have nothing to balance it out. "Once every four year" ads and a walk through the corn fields doesn't add up.
What I'd advise Democrats to do is organize a regional and county by count "rep" system that works like a sales force just like Drug Companies do. Then have those regional reps work with local party volunteers to reinforce the message and resources to spread the word.
All I've ever seen is some well meaning oldsters that get together here and there with the annual booth at the county fair.
There's never any advertising on the local paper or local news station, even though in a lot of rural towns more people visit those places than flip on the tv.
I've tried to bring up the "rural factor" many times on DU but I think a lot of folks don't get how it is the rural vote that has been picked off by the Republicans in the last 30 years, using Churches as the Trojan Horses with little response from the Democrats. I kinda feel like my concern is met with a :shrug:
But as you can see, despite your Demographic breakdowns, the rural voters have delivered Bush the Presidency as well as a long stretch of Republican Congress.
I think the Democrats can win back the rural vote if they continue to focus on lower taxes but really show some results. Median income in rural areas are a lot lower than urban areas so they stand the best chance to get tax relief from Obama. But they don't have the foggiest clue.