What are the forms of European anti-Semitism?

Encyclopedia of Opinion

Question: What are the forms of European anti-Semitism?
Position‹8 of 8: Anti-Leftist anti-semitism
Argument1 of 2›: Socialism is a Jewish conspiracy

Jews foment social revolution to destroy society in order to then take power.

The argument

There are multiple iterations of this argument. Karl Marx was the grandson of a Rabbi, Trotsky and Zinoviev were Jews, and even Lenin was part Jewish (long rumored, recently confirmed). Throughout the 19th and 20th Centuries, much was made (by Hitler amongst others) of the Jewish roots of socialism. Later, Cultural Marxism, which had its roots in the Frankfurt School of social theory and critical philosophy, was led by Theodor Adorno and Max Horkheimer who were jews and socialists. A popular conspiracy theory among extreme right-wingers was this was a long term plan to infiltrate academia with leftist thought in an effort to destroy conservative institutions and thus society - to gain control.

Premises

[P1]This form points to the Jewish heritage of socialist figures like Marx, Trotsky, and Frankfurt School theorists Adorno and Horkheimer. [P2] From it, anti-Semites including Hitler cast socialism, and later Cultural Marxism, as a Jewish plot to infiltrate academia and destroy conservative society. [C] Therefore, the claim that socialism is a Jewish conspiracy is a form of anti-leftist anti-Semitism.

Counter-arguments

A rebuttal on presentational grounds is that the passage recites the trope's own premises — the Jewish heritage of Marx, Trotsky and the Frankfurt School theorists — as if they were factual scaffolding, rather than clearly marking them as the baseless reasoning of a bigoted conspiracy theory. A rigorous account of an antisemitic form should document the claim while plainly flagging it as false throughout, not restate it. On classification, the "Cultural Marxism" narrative overlaps heavily with conspiracist and anti-capitalist antisemitism, both catalogued as separate forms here. Treating "anti-leftist" antisemitism as a discrete category therefore understates how thoroughly these tropes blend into one another.

Rejecting the premises

[Rejecting P1] Listing the Jewish heritage of individual socialist figures restates the trope's own premise; a rigorous account would mark this as the baseless reasoning of the conspiracy, not present it as factual scaffolding. [Rejecting P2] The "Cultural Marxism" plot narrative overlaps heavily with conspiracist and anti-capitalist antisemitism, so treating "anti-leftist" as a discrete form understates how the categories blend.