They were “of low physical and mental standards.” They were “filthy.” They were “often dangerous in their habits.” They were “un-American.”
“The view was they could not fit into the American orientation toward progress and doing better, and would be forever manual laborers stuck at the very bottom,” Diner said of attitudes toward Southern Italians. She said Jews, by contrast, were viewed as “a little too successful, a little too pushy, getting on that American track too fast. They were viewed as competitors.”
The immediate cause of World War I that made the aforementioned items come into play (alliances, imperialism, militarism, nationalism) was the assassination of Archduke Franz Ferdinand of Austria-Hungary. ... This assassination led to Austria-Hungary declaring war on Serbia.