They share an exclusionist and xenophobic vision of democracy[...].But Eric Zemmour is more radical than Marine Le Pen.
Lastly, they have different styles. Zemmour appears as an intellectual and claims he is not "a political man". Marine, on the other hand, is the daughter of Jean-Marie Le Pen, and has grown up with politics from an early age. She also has a more popular, less "bourgeois" style in terms of the way she talks and dresses. Consequently, the two candidates draw different voters. Marine Le Pen appeals more to less educated citizens, from the working class and the lower middle class, and to non-practicing Catholics.