I believe that most of the millennials do not actually like REAL socialism, communism or fascism. Our US indoctrination system has lead them to believe that in these systems, we are all still free people but we somehow "coax" business to share the wealth so that we all do well. That is a proven fantasy. They often think that the Nordics and Germany are socialist when they are all very much capitalists! Do you believe that Google is going to work for the state? They would be Google Canada or Cayman Islands in a week!
The nations that do better than we do are more homogeneous. Have a more powerful and widespread work ethic and a much smaller % playing the roll of needy. We could have every social program that they do, if we only offered welfare to the needy, which is sub 5% in those nations but 25% of the population here!
Blacks in Europe perform at the same level as whites and others. They are not lured into a life of dependency only to become a massive ball and chain on the nation and the source of 8 times as much of the violence per capita.
I would be happy to "share the wealth" with a village, state or nation filled with people like myself and my wife. That is why the Danes and Swiss succeed. They are almost all like me and my wife! I have no issue taking care of the needy but having millions of inner city women, who are given the option of working an entry job or having kids, sans a husband and make twice as much with welfare, is not something I will support without resistance.
In my past career, I spent plenty of time in project buildings and high welfare areas. Most of these people have chosen welfare as a career. That DOES NOT happen in the countries you mentioned! Today, we are burning through the wealth of the nation to maintain a sick welfare state system that MOST Americans reject! There is no money left for infrastructure or great salaries for the middle class.