Impossible.
Remember President Woodrow Wilson well understood the problem of heterogeneous populations in his advocacy after WWI of countries forming on the basis of ethnicity. He understood that homogenicity was crucial for peace and prosperity, for working together.
That was the war in which the diversity of the Austro-Hungarian Empire led to such infighting throughout that its ally, Germany, had to do all its fighting for it and someone famously remarked that Germany was "shackled to a corpse."
This is the situation we are in now. We could not possibly fight any war that required troops now: couldn't get the troops. We really only want to fight each other, which was exactly the case with the Austro-Hungarians (and their 15 other ethnicities besides Austrians and Hungarians).
President Woodrow Wilson well understood the problem of heterogeneous populations … — Circe
We really only want to fight each other… — Circe
Yes, it is clear from your comment history that YOU “only want to fight” your fellow Americans.
Maybe you just want to “fight” in stupid “culture wars.” Maybe you really seek “ethnic / racial homogeneity” war. I don’t claim to know.
It figures you might praise Woodrow Wilson. He was a disaster for race relations in this country and — more than usually realized — among nations in the world too. On the world level, he did not follow up on his big words about “self determination,” and the treaty terms and reshuffling of borders he accepted after WWI only made a new war inevitable.
Wilson was also uniquely responsible for defeating in 1919 the Japanese-proposed (and European supported) “racial equality amendment” for treatment of foreign nationals abroad. This infuriated Japan and played into the hand of extreme Japanese militarists and imperialists, whom Wilson chose to pacify by handing them previous German-occupied Shandung province (in China).
On the domestic level, Wilson’s presidency saw the rise of the national KKK to its greatest power, and he proudly showed the film “Birth of a Nation” in the White House, inviting leading Senators and American business tycoons. He was a throwback and reactionary on race relations, re-segregating D.C., the Federal government and its many agencies. This did immense harm to integration and black economic progress. The period of Wilson's presidency (1913-1921) was the worst era of race based violence in the United States (since Reconstruction). Wilson was the first post-bellum Southern-born and raised President, a “progressive” on everything
except “heterogeneous populations.”
As for the Austro-Hungarian Empire, you’re just talking in platitudes, slicing and dicing through history without any regard for context. That aristocratic / monarchist empire was indeed doomed — by the rise of large modern industrial state competitors as well as by growing, sometimes fanatic, even fascistic local nationalisms.
Fortunately much of that doddering empire’s considerable cultural contributions were absorbed by Europe as a whole. It’s 19th/20th century circumstances and history were almost the mirror image of the rising great power of immigrant-fed North America, with its wide open democratic culture, and continental borders protected by oceans.
The USA became more than an “Empire of Liberty,” as Jefferson once predicted. It became the world power at the heart of Wall Street’s world financial empire. And, despite obvious problems, we did it by proving that “e pluribus unum” … could rock the world.