You can't compare little state sized homogenous countries in Europe to the enormous, diverse landscape of the US. Compare the US to any other country of similar population and you will see a performance standout in almost all categories.
Cherry picking European countries and comparing them to the US is like asking why Vermont, Massachusets, Connecticut, or New York are so much better off than Europe.
Why are Bel-Air and Manhatten so rich? They are just doing so much better than the rest of the US. They barely have any poor! Must be their local governments and better market economies!
Deep ignorance and denial how flawed their culture is. They believe their taxes go disproportionately to cities, and the poor, and that illegal immigrants get free health care who they also subsidize. They believe gays, gay marriage, women, and non-Christians are not equal to straight white men. And they HATE that they are forced by courts and laws to treat them as equal.
They've become skeptical of democracy because it's not working in their favor. When courts were siding with them on religion in schools and part of the public discourse, meaning they get to metaphorically slap minority gays and women around, it was great for them. But as they're on the losing end of these civil rights cases, they're not liking it.
Neither the economics, nor democracy are working for them. So they're attacking the entire system, and Republican politicians are really taking advantage of that in a variation of the Nixon southern strategy:
https://www.thenation.com/article/exclusive-lee-atwaters-inf...
Rural folk don't seem to understand that 100 miles of distributed water and sewage, shared by not that many people, will cost a lot to maintain. Yet they get pissed that city folk are paying less for water and sewer, totally not understanding the concept of economies of scale. They have no idea that rural telephones have been subsidized by city folk for upwards of 100 years to make hundreds of miles of copper more affordable, basically neutralizing the fact they live in the boonies.
https://www.theguardian.com/cities/2017/jun/19/americas-grea...
http://www.amny.com/transit/subway-construction-in-nyc-costs...
Instead of protecting a right to work concept, they protect specific tasks. So even if that task becomes obsolete, you still have to pay that union guy with that specialty to stand around doing nothing.
If it weren't for all the people you'd disenfranchise from such a process, what you'd want is a business, neighborhood, city, state delegation to create a federal law that totally preempts all state and local laws, for each major project, to cut through the red tape. shrug
Oh and middle men. There's a middle man for everything. Especially in Manhattan, it's almost not hyperbole to say the doorman has an accountant, a lawyer, and a therapist. And anybody making more money than a doorman, has two or more of each of those.
Great city. And a shit hole.
EDIT: Also, I think the 2nd Ave project is a big fat classist waste of money. The Lexington Ave/Park Ave line is not that far away, Manhattan has already a very dense subway service compared to Bronx, Queens, and Brooklyn.