Deriving trends with samples of 1 is hardly wise.<p>Le Pen error was in her underestimation that people love the EU more than they hate immigration.<p>If she was running on pure platform of anti-immigration it might have been different. Putting the frexit hurt her imo.
In UK local elections last week the UKIP vote collapsed, so one could argue that right wing populism is in retreat. The media narrative is that the Tories have captured that vote since becoming the party of Brexit.