The immigrants came later, after the colonialists and adventurers. And don't forget the unfortunate black African slaves sold to the Europeans by the Arab muslims. The Europeans needed workers for the agriculture in the "new" land they had taken over.
Manifest Destiny was the rationale/green light for the new country to take over/populate all the land from sea to sea.
Manifest Destiny, a phrase coined in 1845, expressed the philosophy that drove 19th-century U.S. territorial expansion. Manifest Destiny held that the United States was destined—by God, its advocates believed—to expand its dominion and spread democracy and capitalism across the entire North American continent.And that's when immigrants became necessary.
Sorry, but what I wrote is the truth, and it doesn't sound all that pretty. And reading recent news, it's clear that Europeans still think themselves as "rulers" of the world. The Arab terrorist Abbas, whom they set up to run the PA, has gone davka to the European Union to ask their help in forcing Israel to kowtow to his terrorist demands.
The Jewish People have a much longer history here in the Holy Land, and we never completely left it. Now we are back where we belong. We've outsurvived our ancient enemies, and we'll be around long after the EU and the USA, Gd willing.