People have been experimenting with various social/political systems since their have been people. The only real system that is functional is revolution (an election is really nothing more than a peaceful revolution).
The problems start when a political system is established and smart people start right in exploiting the system. Then others carry it to extremes, constantly looking for absolutes that rarely exist.. The majority eventually revolts.
In a purley capitalistic society, people are a consumable resource. The tail wagging the Dog. Do you exist to make money or make money to exist? Use people up and throw them away. And hopefully at the same time, the cream will float to the top, more often than not the chit floats.
Capitalism is also a great waste of resources, for every endeavored that succeeds many fail. Whatever is left over after the failure finds it way into a landfill or is sold below cost.
The only really important qualification for a system that will function for an extended period, is a benevolent system. If the people, as a whole, get feed up enough with the existing system, things fall apart jiffy quick.
The system we have now, is in general, a Westminster system, with the Princes of Industry (and money) and politicians running things. With a Feudal twist, money replacing the sword or money directing the sword.
The US is becoming day by day, more and more like the 1960s USSR. Many of the progressive proposals of today are almost exactly the same as those decried about by the US in the USSR in the 60's. The state raising the children instead of the parents (the state has them more hours than you do and even then you have to divide your attention to other life functions when you do have them). Castrating the Church. The list is very long and in the large part parallels, the Russian (failed) experiment on many levels.
People tend to be wind socks and blow in the direction of the crowd. The only real representative form of Government is the Republic. And these have to be small enough to represent a faction or region.
Want good governemnt? Decentralize!!!!
Much of it is smoke and mirrors anyway, there is a whole sub culture out there of royalty. You rarely hear anything about Royalty, in Europe it is hereditary and wields much more power than you'd think, in the States it is mostly Neo Royalty but still just as pivotal.
People also tend to ignore stamms (or in English) maybe breeds is the nearest definition. Something many people seem blind towards, I guess because it isn't often talked about. Your political affiliation is more important than your roots or genetic inclinations or is it?
A simplified ancesery analysis from the Census data base.
In the grand scheme of things the majority of us are Celts and tend towards a political system that transcends religion or language. An obvious genetic tendency that is often ignored. The Celts were more a social and cultural body than a race. The Celts in America are doomed, the birth rate has fallen below sustainability.
The vast majority of Americans share many more similarities than differences, though people tend to notice the differences more than the similarities. They tend to war over the fine points.
Sometimes you have to look at where you came from, before you decide where you are going. Past successes rather than untried theories likely leading to (probable) failures. Or better yet, not repeating the same mistakes over and over again. The roots of American culture has about the same climate as Pennsylvania and originated in Austria (mostly).