美国茶党狂热份子、俄国沙文主义者、忧心忡忡的荷兰和丹麦人以及新加坡左翼人士究竟有哪些共同诉求推动着这样的反移民情绪？
What can American Tea Party enthusiasts, Russian chauvinists, fearful Dutch and Danes, and Singaporean leftists possibly have in common that is driving this anti-immigrant sentiment?