The Vikings started out as migrant labor?
Yeah, they were migratory, all right. But they sure weren't doing the jobs that the Russians or the English or the Scottish or the Germans "didn't want to do". They came, they saw, they conquered, and they didn't have the governments of the lands they subjugated begging for their votes or their fruit-picking skills, either.
I think raping and pillaging are jobs most Americans don't want.