A lot probably voted for Macron’s party. If they are afraid of the communists, voting for the party that’s allied with them obviously makes no sense.
Although, I cannot speak in terms of Jewishness why a Jew would vote for their destructor, I can state why a liberal would do so.
Liberals are religiously minded people, but they don’t want the obligations that come with their religious mindset. They want a society they like, but they don’t want the morality that comes with making nice societies. JINO’s are like this.
I’ve come to realize that many Jews resent the West, both for its oppression of Judaism but also its ability to create heaven on earth when they are the chosen people and supposed lights to the world. So, they work to destroy the West through leftist and they don’t consider how it will destroy them as well. When I say that, I am focusing on Jewish leftists and not Torah observant Jews.