Those are all good points but there is one more important point, language. Almost all European countries have their own languages, you cannot fully integrate unless you know the language of the country.
Integrating into US is easier since most skilled immigrants are good with English. Personally speaking language was was one of the important criteria when I made the decision to move to Australia from India.
Integrating into US is easier since most skilled immigrants are good with English. Personally speaking language was was one of the important criteria when I made the decision to move to Australia from India.