I read an interesting article by a french alt right writer, I forget the name. He basically explained that Zemmour is part of a wealthy French Jewish community that is sort of neoconnish, except less concerned about Israel and Foreign policy and more concerned about making France safe for Jews, which means reining in Muslim immigration and Islamophilia while also acting as a pressure valve for growing nationalist sentiment that could take an anti-semitic tone.

In other words they arent necessarily what the alt right would view as "our guys" but not necessarily opposition either, but something in between that is somewhat unique to France and it's Jewish population. In the US and most of Europe Jews can generally be divided into anti white globalists(the majority) vs hardline Israel first Zionists(the minority), although both groups are generally still pro Israel, and both groups hate and fear any rise in explicit white nationalism. This French Jewish thing is different and it's really hard to say where it would go. The writer did of course mention that this groups power is almost exclusively tied to Jewish wealth, media influence, and lobbying power, the same as everywhere else.