As my mom says, the fact that they are Jewish means nothing. Leftism IS their religion. That's how it always is with the Left, whatever religion they are born into.
Jews were very active in the Bolshevik revolution in Russia, e.g., Trotsky, and later when Stalin took over were denounced as "Progressives" and slaughtered in the hundreds of thousands.
It is always the "intellectuals", the "progressives" and the "liberals" who are butchered like sheep in the aftermath of a socialist revolution.
Regards,