Why Are Conservatives Angry? Because the President Wants to Anger Them.

From National Review:

Another big reason Republicans are angry is because they have a president who embraces a political strategy of deliberately and consistently enraging conservatives. ......
Mickey Kaus characterizes the approach as “gaslighting” -- giving your opponent a legitimate reason to get angry, then turning around and pointing to their anger as evidence they’re unhinged, obsessed, incapable of governing responsibly, et cetera.

President Obama made clear he refuses to be a lame duck; instead, the passage of the 2014 midterms only liberated him from worrying about what the public thinks.
........................

Many Republicans feel hated by their president, and they return the sentiment. Whether or not they believe in Obama’s Hawaiian birth, they increasingly agree with Rudy Giuliani’s sentiment, “[Obama] doesn’t love you. And he doesn’t love me. He wasn’t brought up the way you were brought up and I was brought up through love of this country.” In Trump, these voters finally have a candidate who expresses that disdain as directly and passionately as they feel it.

The Dear Leader wouldn't be able to get away with this strategy if it were for the Drive-By Media, otherwise known as 'democratic operatives with bylines.'