I didn't know that Obama had competition. /s
It used to be quite difficult to obtain citizenship in any of the Scandinavian countries - 15 years residency, very comprehensive test on history and understanding of the government, of good character, and well able to be a productive citizen. I know this, because I considered such a move back in 1960 (married a Danish citizen), but she chose the option of becoming a US citizen. Even then, taxation rates were almost prohibitively high, and there were severe restrictions on permitted activities (none of those countries have anything like the Bill of Rights). Officially, you were supposed to become a member of the authorized church (almost universally Lutheran), and only by special permission could you belong to another denomination (Roman Catholic, other Christian denominations like Pentecostals or Baptists, or Jewish). There was no provision whatsoever for Islam.
Of course, even then their “safety net” of social programs was just about all-encompassing, and they were quick to extend that assist to LEGAL residents of their countries, but woe be unto you if you tried to sneak coffee or tobacco past their customs agents.
When I landed at McGuire AFB in New Jersey in August of 1960, I bent down and kissed the ground. Then I kissed my newly imported bride.