Jews are not causing leftism, rather leftism is causing Jews to be overrepresentated everywhere. This relationship should be obvious to any rational person, because if the Jews are those amazing conspirational geniuses what on earth have they been doing the 1800 years before liberalism came around? Why is it that they only ever rise up within left wing movements?
The reality is Leftists have always loved victims, and Jews have the most victim-credits of perhaps all ethnic groups in the western world, especially after their treatment in WW2. This is also why there is no correlation between their demographic footprint and their actual cultural influence on society, because it's not the actual Jews themselves that are forcing you to worship the Holocaust, it's white european victim-loving liberals.
This is gaslighting, one of the only good things going for the Jews is that they are very diverse in thought, they think in all directions and they are very transgressive, innovative even. But the problem is they always do what benefits them, others be damned, in fact explicitly others be damned. Thats the problem, thats the thing which people have hated about Jews throughout history and where all antisemitism comes from. Ignoring the fact that Marx was Jewish, most of the people who led the vanguard for WWII and post WWII reconstructionism are Jews, Jews who saw in leftism a method to seal their interests for generations to come. Its not the other way round, Jews do whatever which helps their interests and most of them WWII stuck with leftism cause leftism rewards victims consequence free. And before that, the depression era American jews who "built" american industry, like Meyer Lansky, Bugsy Siegel, Stan Lee, Edward Robinson and others, also saw their interests being increasingly achievable using liberalism/leftism, those interests being ethnic separatism, economic control etc. "If the goyim is preoccupied with leftism and other people fighting him, nobody will question what we have and what we do". Jews love being victims cause it gives them what they want and since leftism rewards victims, they became leftists, theyve always portrayed themselves as victims right from the time Yahweh or whoever punished them for worshipping the golden calf at Sinai.
Also your history on the Holocaust is wrong, the Holocaust wasnt even referring to the Shoah till the late 50s, it was just a English translation of the greek Holokaustos which meant burning. In fact people used it often before the Holocaust, Ive read Conan stories where Robert E Howard used it to refer to mass destruction, usually a city being destroyed or somebody being tortured and killed by mass of people. "A Holocaust" common noun. After Nuremberg and the Israeli Holocaust trials of Adolf Eichmann and Goring and such did the word come to be and initially American Zionist orgs were reluctant to adopt it, due to the fact that it might depict them as being unethical or attached to foreign interests. Sometime during the Yom Kippur war they realized that using the Holocaust as a propaganda tool netted them political power under the guise of sympathy and the rest was history. Norman Finkelstein details this in the Holocaust Industry, especially given some of his first hand accounts of living with his Holocaust survivor parents and contemporary New York Jews.
Also a lot of civil rights actions which did not explicitly involve leftism (the Anti McCarthy Movement and the Hart Cellars act) were pushed on by Jews. Ive probably rambled on too much stream of consciousness style but your assertions are just wrong, they love victimhood cause it gives them power and they align themselves with whichever movement (leftism) which does so. This is excluding all the sociopolitical reformations they did with no basis in science or reality, stuff like Franz Boas's invention of cultural relativism, the Frankfurt School Jews and their cultural marxism theory, Stephen Jay Gould's nonsense studies, whole host of shit. No end to Jews in American social sciences concocting crap to keep goyim divided.