It's their imperative to actively work towards de-homogenising the societies the squat in, because they know that the nationalism clock is forever ticking on no.110...

"It is my view -- and this is controversial view -- that when borders are blurred and distinctions are actually diminished, Jews tend to flourish. But, when the drawbridge is raised; when borders are more clearly defined; when people are defining, sharply, what it means to be an American or a Frenchman or a Briton; those are bad times for Jews because nationalism rises; and as these ethnic and national distinctions are sharpened, the Jews tend to be left out of the definition -- they tend to be isolated and, eventually, they tend to be persecuted."

~ Johnathan Weisman, Congressional Correspondent (New York Times)