I see the point that you're making. However, despite the founding fathers being incredibly visionary in the creation of a government, that does not mean they were 100% right in ever area. Simply because the right to bare arms as a part of a well regulated militia (which the US doesn't have, Switzerland does) is among the first amendments, doesnt mean it is infallible. One of the main arguments I have heard about taking a different approach to government, i.e following the Scandinavian model of democratic socialism, is that it wouldn't work in the US due to the difference in size of our countries, and the fact that many of the Scandinavian countries are largely homogeneous. However, when it comes to examining our own bill of rights under a critical eye, all of a sudden people seem to forget that our collection of colonies was very similar to what the Scandinavians have today. So, in a sense, we are operating on a system that was designed for an entirely different kind of country; yet, these guiding principles are supposedly unbreakable?
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Fun Fact: The US is no longer even considered a democracy, but rather a flawed democracy. Which on the global scale ranks our government with that of Italy based on electoral process and pluralism; civil liberties; the functioning of government; political participation; and political culture.