Not to discount your experience, i am sure you've been through a lot of paperwork (i know i sure have, and i'm yet to meet someone who enjoys immigration departments!) but the US is pretty damn tough if you are not a) wealthy and/or b) highly educated and in demand.
You can get an EB1 (greencard in 3 months if you qualify.
You can get an O/L/E visa in a few months same thing with H1b.
And you have way more ways to get in.
Also you need to make the proper comparison with EU not just cherry pick a few countries. I can cherry pick countries to where it's very hard (try Denmark for instance).
My claim was EU vs US again 11 million illegal immigrants living here and for a large part contributing to the economy that alone would never happen in the EU.
And you don't need 1Million for a EB1. It's a merrit based greencard (just like O1 visa is)