The self-righteous (whom He called "whitewashed tombs"). It seemed like they were always "Outraged" at something.
And, of course, the moneychangers, who like in the song "Tiny Dancer" were "handing tickets out for God".
People need to believe in something. Venting outrage based on their beliefs strengthens those beliefs. I don't begrudge people their self-righteousness or outrage.
It's still a free country and according to the U.S. Constitution, people are free to believe anything they want as long as it doesn't annoy Durasell.