You'd think these guys never heard of the Truman Doctrine...
Or, being leftists, they disagree with spreading and supporting Democracy.
It's probably that, and that they truly hate this country.
But I would bet a lot of the people in attendence were making money of the status quo ante--such as via the Oil For Food program.
We know that Wilson gets money from the Middle East Institute, as an "adjunct scholar." It's said that is a Saudi front. If so, he says what he is paid to say.