Leftoids don't understand that Jewish revolutionary politics require tipping the scales at both sides. There are no drawbacks to having communist fiefdoms for kike bankers/international capitalists.

White europeans are the main obstacle to their conquest because historically, Christendom has been at odds with Jewry (most sects of Christianity are thoroughly kiked now, though). Islam has been subverted for far longer than Christianity. Muslims obviously don't like Jews that much, but that doesn't stop them from being useful politically to Jewish interests (see: migrant crisis!).

Jews historically have often fought alongside Muslims against Europeans. In a broad historiographical context, one might argue that the migrant crisis being manufactured by Israel is a modern iteration of said phenomenon. At any rate, Christemdom is laying on its back and Jews and their European political lapdogs have opened the floodgates for millions of them. They realized that there would be many opportunists who would flood in to Europe despite not actually coming from war-torn countries.

Christianity (and in particular Catholicism) was what kept Europeans unified against Jewry throughout most of history after Christ. There was a time when kikes actually got expelled from European countries. What happened? Many of the yids who were expelled from other European countries (in particular, Spain) fled to Holland and started practicing mercantilism (slave trade came along soon after). The Reformation happened and Calvinists introduced the practice of usury in lending: Christians began acting like kikes. In more modern times (late 19th century) the Schofield reference bible got published, (which, along with the outcome of WWII sealed the deal for how most Christians felt about Jews). By WWI the Rothschilds had accumulated enough wealth to further the goals of Zionism to completion (see: Balfour declaration).

In short, with the dissolution of Christianity as the primary bulwark against Europe getting fully cucked, a difficult problem facing the modern far right is finding another point of unification; there is so much disagreement on points like religion that forming a cohesive movement is heavily hampered. Identity politics on the right-wing of the political spectrum really seem as insurmountable as those on the left, although they are obviously different beasts.