The UK, The USA, Canada, Australia, and New Zealand will form a block of cultural, legal, economic, integration because we share common culture, language, and values as dependent on distributed NAVAL interests rather than shared continental powers – effectively restoring the British empire. We will have the largest territories, with the most resources, with the largest time zone coverage, at the lowest population density.
Anglosphere: UK 320M, UK 66M, CA40M, AU 25M, NZ 5M = 435M.
Even if the EU unifies all of Europe that 550M, and much of it is POOR. Germany won’t survive the population decline, nor will her industry survive the automobile contraction. Eastern Europe isn’t willing to commit cultural suicide by Muslim immigration. And the entire continent is dependent upon the grace of Russia, and the coming Iranian success at the restoration of the caliphate with Jordan, Lebanon, Syria, and Iraq, followed by the conquest of the Saudi North Gulf, and creation of an oil bourse and oil-backed currency.
The reason you (the EU) failed was (a) French authoritarianism, (b) French interests in Africa, (c) german immigration of Turkish labor, (d) failing to grasp that Muslim immigration is repeating the Christian destruction of the roman institutions (e) cowardice in closing your borders and repatriation, (f) choosing immigration and integration over automation in a world where the value of labor, clerical labor, and shortly, managerial labor is approaching zero.
Japan is the only country having made the right choice.
And America, upon which european sovereignty depends, is as fragile as Europe before the thirty years war.