I can't really see anything in your post that contradicts anything I've written in this thread so I'm not sure what your point it.
If the US pulled out of the European Theatre and stopped "world policing" like many in the EU (and the US) would like, then it would not be long before most of the EU was speaking Mandarin or Russian, and the EU can not stand alone with out the US backing both Militarily and Economically
the "western-European nations." you wish me to compare the US to would fall in about 3 seconds with out US backing, and their Large State Welfare systems would collapse