Excellent observation!
The five countries commonly considered "Scandinavia" had a total population of 15 million in 2012.
Viewed as a State in the U.S. it would be collectively ranked as #5!
Bernie has a pair of distorting socialist utopia glasses, and evidently total ignorance about the world and the social dynamics of national identity and politics.
Until recently, every one of those countries had homogeneous populations and, most importantly each are autonomous (unlike the U.S. States which have all been hijacked, held prisoner, and robbed blind by an overreaching central government and its colossal corrupt bureaucracy.)
Any comparison of the U.S. with Scandinavia is an exercise in gross ignorance. Not a good quality in a presidential aspirant.
Why does the senator from the whitest state in the US always point to the whitest countries in the world as those to emulate?