Le Pen is far right nationalist. Socialist are always be on left in France. Le Pen want to stop most social helps for immigrants and to some French citizens too. His party now is rather close to Trump in terms of immigration.
The link with Nazism goes back to the creation of the party with marine le pen's father, Jean Marie and Pierre Bousquet, the co-founder, was in the Nazi Waffen-SS during World War II.
https://en.m.wikipedia.org/wiki/National_Rally
Thank you for the clarification. I’ll read this link shortly after work. 🫂