Well, it really doesn't take much research to find out that the last Leaders of the Roman Empire were fruitcakes or just Insane, take for instance Caligula and Nero, both Homosexuals, Both Criminally Insane, and then there's Augustus Cesar, heavy handed, but tried to save Rome from itself, and worked toward Fairness through Authoritarian Rule, sort of an Oxymoron....

Constantine I was too heavily involved in Military affairs throughout his life, and then Connected it all with the Christian Religion, and even though Rome was in the Middle of a Civil/Internecine War, became the Emperor, and his Military Service shows in his method of Leadership, granted, by that tie, a huge portion of Rome was already in the solid grasp of the hedonism, debauchery, decadence, which is ultimately what destroyed all of Rome, except for their Money Vault, which went with the Roman Catholic Apostolic Church, aka the Roman Paganist Catholic Church, aka The Vatican....

The Roman Republic last at least 470 Years....

Then The Roman Empire took off and lasted 500 Years....

And the Vatican has been in Power ever since then, but is now being taken down, one coin at a time....

So the MYTH that World Powers never last more then ~ 250 Years is just that,a Myth, and we can save America, but to do so, we must first Close our Borders, deport ALL Illegals, dispense of all Criminals, and then set up a method of {Unlimited Expansion}, and whatever that means, whether via a ""Pax Americana"" like Pax Romana, or by Brute Force, it is time to Drag Humanity into a Post Barbarian Society, whether it wants to go or not, dragging and screaming and kicking and throwing a tantrum like the Child it most definitely is, but it is time this Planet Experienced True Justice and True Law, everywhere, and not just in America....

And Yes, ""Post Barbarian"" does mean we should dispense with Niceties when dealing with Criminals, Possibly moving to an ""Eye for an Eye"" type of punishment for things such as Murder, Rape, Arson, Burglary, And make the Justice System Fair and Correct, unlike the Criminal Justice System we now have wherein they only deal out Justice that is Criminal in its nature....