I feel like this is an extremely unpopular opinion but I really don't think republicanism was a step forward for humanity.
Monarchy is the most intuitive form of government. People tend to take care of what they own, and politicians have no incentive to leave anything better for the next generation because they really have no stake in their country. Their legacy dies with them.
A monarchy with constitutional (and familial) checks and balances is vastly preferable to a republic where the foreign interests run free and loot the taxpayers. It's pure and much simpler. No Congress, no Supreme Court, no ridiculous sham elections. Everyone knows who's in charge and what the rules are.
Not different from being disappeared by the CIA/FBI or the Clintons. Every form of government has their difficulties but elected monarchies as a form of government historically just do the best in looking out for the interests of their own people rather than bankers and pedopiles.
Another example is the Roman Empire during it's golden age, i.e. the reign of the good emperors. Although not an elected monarchy in terms of any voting, it was elected in that the current emperor would elect or choose the successor emperor.
So you have Nerva -> Trajan -> Hadrian -> Antoninus Pius -> Marcus Aurelius / Luicus Verus. And this was the absolute height of Roman power. Then when they switched to a hereditary monarchy and Commodus takes power, everything goes down the drain.
I'm not saying that Venice was PERFECT or even GREAT, I'm simply saying that it's the BEST form of government in a pool with some pretty shitty picks. We could do a lot worse than an elected monarchy. The American system is good in that it's mixed regime but it leans waaay too heavily on popular elections which assumes a competent and educated populace, a free press, strong Christian culture and morality and we're seeing the hard way what happens when those pillars get knocked out or corrupted by rich pedos.
ALso, look how the Roman Republic turned out, ruled by a secret cabal of very rich elites (first and second triumvirate). Then the elites fight amongst themselves who gets to rule it outright. History may not repeat but it sure does rhyme.
Actually, come to think of it, Augustus may have had a sort of personal epstein island setup where he would import in any young girl he wanted from within the empire. There is speculation that one of his poet friends (ovid?) was exiled far far away because he saw what Augustus was doing.
It is simply possible that government is impossible to get right.
Anything and any ideology can work for a time -- yes, including communism -- but something, somewhere will always start to fail. It's just about the amount of time it takes to fail that sets some (communism, socialism) apart.
The Founders could have written more strong words that were more protective and specific and it would have stopped these issues.
It also would have helped if we had more commonly available works from the Founders to smack down the notion of modern "interpretation" of the Constitution.
Ours may not be perfect, but I think where it is failing is not the type of government itself.
I mean types of governments are not perfect and all have strengths and weaknesses. Even monarchies are not perfect and will eventually succumb to corruption. Venice itself would become corrupt with the black nobility. But that is because the common people become irredeemable corrupt. However, in America that has happened much faster because there are no bulwarks like the Church, or the Christian King to nip such revolutions in the bud.