The other name for the European Recovery Program, and the one that is more commonly used is the Marshall Plan. This plan had as its objective to boost after-war economy in Europe.
It was offered to many European Countries, but some refused because they were under the influence of the Soviet Union.
I think that the support of political economy of populism has overturned the society. the truth is that contemporary populism has taken root in most European societies.
True, Nativists were an anti-immigrant group that held racist views of new immigrants.