The recent post on the Formerly Fundie blog (Patheos), "3 Key Reasons Why Religious Right Leaders Are So Angry", is quite good. There is only one point that should have been added. Anger is a constant among the religious right leadership. Even if things were going better for them they would still be angry*. Put simply they are angry because as authoritarians no amount of power and control will ever satisfy them. They will always want more. These coercive bullies tend to be all the terrible things they insist on projecting on other people.
*Unfortunately their outlook is not as bad as they or Benjamin Corey perceive it to be. They do still have power and influence and our pathetic ideologically driven Supreme Court has handed them a few gifts recently.