I'm thinking more about the political classes and other power players using him unwittingly, allowing him to grow so that he can fulfill some sort of function. Zemmour has been in legal trouble for 'incitement of racial discrimination', 'incitement to hatred of Muslims', and a few similar things, so I don't think he is wittingly part of some deliberate plot. The political classes hate him.

I think the most likely function he might unwittingly fulfill is that 'Right-wing anti-Semitism' might decline as a result of an unusual 'good' Jew being voted into power. They would then point to Zemmour to say that people who think that Jews are behind communism, libertarianism, and 'progressivism' are just conspiracy nuts. The result would be a more 'Jew-friendly' Right. Israel needs this because they've been trying to realign themselves with groups like Austria's FPO and Germany's AfD and away from Leftist groups that are becoming ever-more sympathetic to Palestine and causes like the BDS movement because they see Israel as a White supremacist state bombing poor browns. It might even be working. Austria's previous FPO leader (Strache) visited Israel and Netanyahu despite some Jews kvetching about FPO being 'Nazis'. AfD stood a Jewish homosexual in Berlin during the last election.

The flip side is that 'Left-wing anti-Semitism' would also increase, with them increasingly analogizing Israel to Nazi Germany or Apartheid South Africa. We know that the Elves are deeply concerned about 'Left-wing anti-Semites'. They practically single-handedly destroyed Jeremy Corbyn in the last UK election by labeling him one simply because Corbyn is sympathetic to groups like Hamas. UK Labour got its worst electoral defeat in 84 years as a result of the media constantly bitching about his supposed 'anti-Semitism'. But if Israel wants to realign itself with groups like AfD, FPO and France's RN, they'd just see an increase in 'Left-wing anti-Semitism' as a fait accompli, as to be expected.

Of course, they might not even think that far ahead. The most simple explanation is that they're simply scared of a Le Pen victory, unable to understand that Le Pen isn't her father. The same thing happens in Sweden, where they simply can't understand that the Sweden Democrats are no longer Far-Right. Le Pen is polling best against Macron, followed by Bertrand with Zemmour a distant third. They might simply need someone to outflank Le Pen from the Right to best take away votes from her and ensure that she simply doesn't make it into the second round.