Many Italian immigrants came here to escape serving under Mussolini and served in the US Army to gain citizenship.
I have absolutely no problem with this for people of any nationality.
Immigration to America almost stopped during the Great Depression.
Each and every wave of immigration has forced this country further and further toward leftist statism. A very shortsighted view on your part.
What was set up here was a very particular and novel form of Anglo governance. It is not universally transferable to all peoples of the world. If it was they would already have it on their own.