the largest nordic population is sweden, which is less than 10% the population of the US. it is also ethnically significantly more homogenous than the US, which

the largest nordic population is sweden, which is less than 10% the population of the US. it is also ethnically significantly more homogenous than the US, which by your own standard is dizzyingly diverse ('white' contains dozens of ethnicities, along with regional and class subsets and period of integration). assuming that the same policies work for everybody in all circumstances is willful blindness.