While American nativism and anti-Semitism declined after World War II, so did the overt Jewishness of Superman.
But last I checked, neither Jean-Marie Le Pen, Filip Dewinter nor Joe Arpaio learned their nativism from reading Jabotinsky.
Its only real contribution to government was the proof that nativism is not Americanism.
When the fight with nativism was over, the Irish were in possession of the cities.
The Old West raised the issues of nativism and a lower standard of comfort.