The world is full of all kinds of people, all kinds of ideas, beliefs, superstitions, prejudices and more...
If we were ever to implement a democracy we would have to accept and respect ideas that are direct in opposition with our own.
We would have to give equal validity, for example, to the ideas of people proposing to use science as a tool to improve our lives and to those who want to take decisions based on the readings of the testicles of a goat.
We don´t need a democracy because not all ideas have the same validity.
Furthermore we should not be shy when declaring that someone else´s ideas are wrong, as long as we have the proper evidence to prove such an affirmation.
A natural approach to a form of government would be one that takes the evidence into account for any kind of decision making process, for example the one proposed in the Zeitgeist III movie, part 3 (1:29:20):
Method of government
I say government but what I mean is not a group of people creating and enforcing rules. I mean a global management system which is able to determine the best course of action given the current information about the issue it is to decide about.
Now, the method is simple and we have used is for a little more than three centuries with awesome results (unfortunately not as a form of government); its name Science.
Science offers many desirable features of any type of government, it is open, self-correcting, free, evidence-based, testable, reproducible, and its finding are free from opinion and bias towards any special group of people, and even when an advantage is sought by fallible humans, it is openly exposed for everyone to see and challenge.
