Isn't this essentially exactly what they for some period said of every new ethnic or religious group in the US going back to before it was even an independent c

Isn't this essentially exactly what they for some period said of every new ethnic or religious group in the US going back to before it was even an independent country? Catholics, Jews, Irish, Chinese, Russians, Muslims, Mexicans, and Italians have all had or are having their time of being seen an existential foreign threat, irredeemably incompatible and insidiously perverting the pure culture (at least by some), and that's just off the top of my head.