From Israel +‎ firster, influenced by and compared to America First (“American isolationist ideology”).

Israel-firster (plural Israel-firsters)

1. (informal, somewhat derogatory, politics) A person who places the interests and welfare of the State of Israel above those of the nation in which they reside.
   • 2010, James Petras, Zionism, Militarism and the Decline of US Power, page 78:

     The ZPC never lost a beat: Israel Firster and Zion-Con fanatic, US Treasury Under Secretary responsible for terrorism and financial intelligence, Stuart Levey, succeeded in convincing China to tighten trade credit ...

   • 2011, Norman G. Finkelstein, "This Time We Went Too Far" - Truth and Consequences of the Gaza Invasion, page 177:

     Former Israel-firster Andrew Sullivan chalked up the likes of Krauthammer as "victims of Israel Derangement Syndrome."

   • 2012, Edward Hendrie, Bloody Zion, page 132:

     These Benedict Arnold-types willingly collude with a foreign power and plot to damage America by serving that foreign power, the nation of Israel, as undercover spies, saboteurs, and intel agents. To most Jews, their origin of birth is of no consequence. They are Israel-firsters and are traitors.

   • 2013, Josh Ruebner, Shattered Hopes - Obama's Failure to Broker Israeli-Palestinian Peace, page 75:

     The increasing proximity to the president of this quintessential "Israel firster" most likely played a role in reigning in Obama's initiative to completely freeze Israeli settlements.

   • 2014, Ben Shapiro, Bullies - How the Left's Culture of Fear and Intimidation Silences Americans, page 247:

     routinely used the white supremacist anti-Semitic slur "Israel Firster" to describe any Jew who was hawkish on Israel.

   • 2017, Johan Eary, Discussing Israel:

     Don't pull U.S. into this. You Israel firster should fight your own fights.

   • 2018, Colton C. Campbell, David A. Dulio, James A. Thurber (editors), Congress and Diaspora Politics - The Influence of Ethnic and Foreign Lobbying, page 236:

     One critic argued, "Kirk is a pure Israel-firster ... [H]e brings home the bacon for Israel big time.

   • 2019, Alan Dershowitz, Taking the Stand - My Life in the Law, page 478:

     It has also earned me the titles "Ziofascist", "Jewish Nazi", "Tool of the Likud", and "Israel Firster".

   • 2022, Richard Landes, Can “The Whole World” Be Wrong? - Lethal Journalism, Antisemitism, and Global Jihad, page 478:

     On the other, to fail to show sympathy for Palestinians was to out yourself as a heartless tribalist, an Israel-firster.