OK good then we agree - America is a democracy. The system you describe ended in 1860 or thereabouts. If you are for federalism then we have even more on which we agree since federalism is based on the Catholic idea of subsidiarity - or decentralization of power.
The momentum of statist philosophy from the Protestant revolt forward has been a return to the centralization of power. This is accelerated by democratic idealogy since it is fundamentally identitarian that is it seeks conformity.
Surly you jest sir. The Catholic ideal was one of centralization of power, or rather in two centers. The Emperor and the Pope. All power flowed from those two, and after Urban all power flowed from the Pope.
That doesn't mean the kings and emperors played along very well. Many a ruler tried to influence the papacy (Avingon for example), and more than a few popes let themselves be influenced. But to say that Catholicism is about decentralized power is disingenuous at best.
Would you identify this politics with Hillary's "politics of identity"?