An enemy within
There are terrible precedents for attacking immigrant culture - like the well organised and sponsored US campaign during the first world war

http://mondediplo.com/2016/05/07usgermans
Date Written:  2016-05-01
Publisher:  Le Monde diplomatique
Year Published:  2016
Resource Type:  Article
Cx Number:  CX21923

A look at the persecution and campaign against Americans of German origin within the United States during WWI.

Abstract: 
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Excerpt:

The land of liberty has declared war on barbarism, on a distant empire that is attacking France and Belgium, and which despises civilians, kills children and rapes little girls. Politicians, supported by the masses, trumpet their eagerness to destroy the enemy: "We are at war!" But while the troops fight over there, civilians at home are in ferment. Is the enemy hiding nearby? Could immigrants and their descendants, apparently loyal, really be an invisible army of spies and traitors?