Sanders is right. It's a new brand but the same party composed of the same people. 
I spend a lot of time in France, and even have friends who support LePen, but I find even in them one common characteristic, xenophobia, or more simply, irrational fear of others who are not like them. 
Most admit it openly. 
I just remind them that it was foreigners who fought and died to save the cowardly derrieres of their ancestors from the Nazis. They have no good response to that fact.