I assume you are referring to elected Democrats in your first point. If so, I disagree. I think the Rats have been totally highjacked by far left liberals. They are great company for Obama. The Blue Dogs are extinct. Manchin might be the only semi-moderate Rat left in D.C.
Regarding your second point, Obama goes govern against Rat fortunes, but he has plenty of allies or he wouldn't have gotten this far. There's only so much you can do unilaterally and now that the GOP has a clear mandate, they can cut him off at the knees by refusing funding for his hare brained schemes and I truly hope they do.
After 2010 and last night, I am more convinced than ever that Obama, the persona, was the reason why the Rats won in 2008 and 2012. It had nothing to do with their policies, even though they think it did. That concept heartens me and bodes well for 2016 when the slate will be wiped clean.
Obama is a narcissist, an empty suit who has been advanced beyond his capabilities because of the color of his skin. All his life Obama has been reinforced in the belief that race is the matrix upon which everything should be judged, including his own performance.
I do not expect him to depart from this worldview but I do expect some Democrats to desert as they find the race card no longer trumps.