"the truth will emerge from the competition of ideas in free, transparent public discourse and ... ideas and ideologies will be culled according to their superiority or inferiority and widespread acceptance among the population."
But which "truth". You only have to look at the climate change and vaccination threads to see how the real truth is suppressed, and popular misconceptions dominate. But I agree that public discussion is good, and sometimes it leads to the conversion of the misguided and uneducated.