The Democrats don't have to face the voters again for two years, so they no longer feel the need to repress their ugliest sentiments, which defeat has made them feel all the more passionately.
The problem they have is that they don't understand, despite the way the blogs, especially Powerline, influenced the last election, that they are not protected by the two years between now and the next election. The blogosphere is like an elephant. It has a very long memory.
Perhaps they should all read this.