Castiel looked around and found a few pamphlets. All these people who murdered, who hated each other and did all this in his name, who preached they knew his will, they had to be exterminated. His Father may have accepted them but Castiel was a better god, he would not tolerate them and their hateful rhetoric.
The only good thing about them was the way they were open about their opinions, wrong as they were.
He read the pamphlet about a meeting of inspirational speakers. Yes, they would do fine, they fitted well enough. They even said where they met.