But now I've discovered an article from 1955 which claims that it was American Reform Rabbi Isaac Mayer Wise (1819 - 1900) who said: "Some call it Marxism. I call it Judaism."
The article reproduced below, is from a magazine called Destiny, published by Anglo-Saxon Federation of America, who were British-Israelism promoters. Britons and descendants of Britons in the U.S. and elsewhere, who believe they are one of the Lost Tribes of Israel.
According Michael Barkun, multi award-winning debunker of "conspiracy theories" that involve Jews; the Anglo-Saxon Federation of America was "anti-semitic", and from it, derives the Christian Identity Movement. Barkun also claims Pat Robertson uses "anti-Semitic over-tones." This is the very same Pat Robertson, who in 2002 received the State of Israel Friendship Award from the Chicago chapter of the Zionist Organisation of American.