Henry Siegman was once a prominent Jewish leader, but in the decades since he last held any serious position in the community, he has made his mark as yet another Jew who has learned that the way to stay in the press is to attack fellow Jews and the State of Israel.It was therefore not surprising that he decided to criticize me in a publication that has also made a habit of disingenuous and counterfactual attacks on Israel and its supporters – the radical anti-Israel left-wing rag The Nation. I’m a big boy and can take shots from the likes of Siegman; however, when a fellow Jew likens me to the Nazi propagandist Joseph Goebbels, he has gone beyond the bounds of reasonable criticism and has become an unhinged nut.What set off Siegman was the ad we published in The New York Times pointing out Secretary of State John Kerry’s effort to morally equate Palestinian murderers with Israeli victims and the security forces who defend them.The ad expressly did not call Kerry an anti-Semite. Rather, we made the case that his words are endangering Jewish lives by refusing to unconditionally condemn the murder of Jews and because murderers do not fear consequences from the United States.Like many Jews who want to convince non-Jews that they have a legitimate opinion, Siegman brings up his own escape from the Nazis to suggest that this qualifies him to speak for the Jews. Alas, he is not the first Holocaust survivor to strangely turn against his own people.Siegman was clearly playing to the readers of The Nation by trying to prove my guilt by association with my friend Sheldon Adelson, the world’s foremost Jewish philanthropist and the current bête noire of the left wing. He does the same to Prime Minister Benjamin Netanyahu by drawing a connection between his policies today and those conducted in the 1940s by the Irgun – the Jewish underground that is another popular target of the Left. And, of course, the association with a prominent Nazi is the ultimate slander against a fellow Jew.It is ironic that Siegman brought up Goebbels in his disgusting attempt to defend Palestinian terrorism. After all, Goebbels made famous the concept of the “Big Lie,” that is, repeating an outrageous untruth in the hope that the uninformed and ignorant will believe it.This has actually been the modus operandi of Palestinian leaders for years. Here are just a few examples of the whoppers told by Palestinian officials: The Palestinian representative to the UN Human Rights Commission claimed the Israeli government had injected 300 Palestinian children with the HIV virus; Palestinians claimed that Israel dropped poisoned candies from helicopters in front of schools to poison children; a modified version of this lie was the accusation that Israel was making “bombs and mines designed as toys” and dropping them into the Palestinian territories from airplanes so children would play with them and be blown up.THE PALESTINIANS have their own Big Lie propaganda chief in Saeb Erekat, who, paradoxically, is the lead peace negotiator for the Palestinians. “There’s a saying,” Erekat has said, “that if you don’t stop a man who is lying after 24 hours, the lies turn into facts.”Here are a few examples of how Erekat has put this idea into practice: In 2002 Erekat told CNN that at least 500 people were massacred and 1,600 people, including women and children, were missing in Jenin after Israeli forces launched an operation to destroy the terrorist network in the city. Erekat produced no evidence and the Palestinians’ own review committee later reported a death toll of 56, of whom 34 were combatants. No women or children were reported missing.In 2007, just as peace talks were going to begin in Annapolis, Erekat delegitimized Israel’s position by making the remarkable statement that “no state in the world connects its national identity to a religious identity.” A strange assertion given that the draft constitution for “Palestine” declares Islam the state religion of Palestine. Islam is also the state religion of more than 20 countries.In February 2014, Erekat claimed his family was related to the Canaanites to prove the Palestinians predated the Jews in the Land of Israel. Palestinians periodically make this fantastic claim which has no historical basis.Arabs have lived in the area for roughly 1,000 years, not more than 5,000 as Erekat maintained. Moreover, a large percentage of today’s Palestinians, including Erekat, are descendants of tribes from other Arab lands.Erekat’s family came from a tribe that lives in Jordan and Saudi Arabia and did not move to Palestine until 1860. Erekat may be the unofficial minister of propaganda, but his boss is no slouch in the Big Lie department. For the last several weeks Palestinian Authority President Mahmoud Abbas has incited the violence that has resulted in the murder of 19 Israelis since October 1 with his spurious claim that Israel is threatening the Temple Mount.THESE ARE the people Siegman would have Israel negotiate with, because in his Orwellian world, murderers are peacemakers. Like the Israel-haters advocating boycotts, divestment and sanctions against Israel, Siegman has no trouble validating a Palestinian right to self-determination in a land where Palestinians have never been sovereign, while simultaneously denying the Jewish people the right to self-determination in the land they have considered their homeland for more than 3,000 years.Preposterously, Siegman compares Jews under the Nazis to the Palestinians under Israeli rule. This calumny is nothing short of anti-Semitism. Jews never terrorized or threatened the Nazis and were targets of a campaign of extermination. Palestinians, however, terrorize Jews while rejecting any and all peace offers because their leaders do not believe the Jewish people have a right to live in the land.The PA praises the murder of Jews, names schools, parks and streets after the killers, and pays benefits to the terrorists who are captured and to the families of those who are killed. In the current paroxysm of violence, the men and women who have stabbed, stoned and run over Jews have been treated as heroes.Like others who obsess over settlements, Siegman cannot explain why there was no peace for the 19 years when no settlements existed. He can’t explain why the Palestinians have repeatedly rejected peace offers when the number of settlers was negligible and then when successive Israeli prime ministers offered to dismantle most settlements. Siegman can’t explain why, after Israel withdrew every last soldier and settler from Gaza, Hamas responded with 10,000 murderous rockets. Siegman can’t explain why Abbas refused to negotiate for the last seven years, even after Netanyahu gave in to Obama’s wrongheaded insistence that he freeze settlement construction.Sadly, in claiming that I, an Orthodox rabbi who fights genocide all over the world, is Goebbels, Siegman indicts himself, proving the effectiveness of Goebbels’s approach. He has bought the Big Lies of the Palestinians, hook, line and sinker and now regurgitates them like the Germans who fell under the spell of the Nazis.But Siegman is not Goebbels. Goebbels was evil incarnate, a monster who erased every human vestige from his countenance. It is a crime to compare anyone to the top Nazis, who exist in their own slime pit of sulfuric hell. Rather, Siegman has been out of the sun too long.And you know what happens to activists who are passed over; they will say anything to get back in the news.Well, Henry, you made it. You’re back. But the manner of your arrival has unfortunately disgraced the American Jewish Committee which you once headed.The writer, “America’s rabbi,” is the international best-selling author of 30 books, winner of The London Times Preacher of the Year Competition, and recipient of the American Jewish Press Association’s Highest Award for Excellence in Commentary. He will shortly publish The Israel Warrior’s Handbook.