There are two things that we can take away from Dagan's criticism of Netanyahu, and the wider reaction in Israel to Netanyahu's speech.
1) Despite all the talk about an "apartheid" Israel, it is still a democracy in which competing personalities challenge for power. There is no deified leader whose every word goes unquestioned. Netanyahu can claim all he wants that he speaks for all Jews when he goes in front of Congress, but in reality he doesn't. He speaks for Netanyahu and maybe a third of Israeli society, and even that's pushing it.
2) Prime Minister Netanyahu is not a powerful politician who can get away with hyperbole, not in America nor in Israel. He has faced a lot of criticism in Israeli society for his destructive behaviour in Washington. He is Israel's Ahmadinejad. The quicker he gets out of sight, the better it would be for Israel's image around the world, and for the U.S.-Israel relationship long-term.
Video Title: The Netanyahu Speech and the Neocons. Source: TomWoodsTV. Date Published: March 4, 2015. Description:
Daniel McAdams and Tom discuss Benjamin Netanyahu's speech before the U.S. Congress.